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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Royopa\Quandl\Tests;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Royopa\Quandl\Quandl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class QuandlTest extends \PHPUnit_Framework_TestCase  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $api_key  = "DEBUG_KEY";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $symbol     = 'WIKI/AAPL';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $symbols    = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'WIKI/CSCO',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'WIKI/AAPL'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $dates      = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'trim_start' => '2014-01-01',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'trim_end'   => '2014-02-02'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    protected function setUp()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (! file_exists(__DIR__.'/../.env')) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $dotenv = new \Dotenv\Dotenv(__DIR__.'/../');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $dotenv->load();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->api_key = getenv('QUANDL_API_KEY'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $cache_file = false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function tearDown()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->cache_file and unlink($this->cache_file);  | 
            
                            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testCsv()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("csv", 2800); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("csv", 2800, true); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testXml()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("xml", 14000); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("xml", 14000, true); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testJson()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("json", 4200); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("json", 4200, true); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testObject()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("object", 7400); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testGetSymbol("object", 7400, true); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testInvalidUrl()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testInvalidUrl();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testInvalidUrl(true);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testCache()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->_testCache();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->cache_file and unlink($this->cache_file);  | 
            
                            
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                        $this->_testCache(true);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function cacheHandler($action, $url, $data=null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $cache_key  = md5("quandl:$url"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $cache_file = __DIR__ . "/$cache_key";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if($action == "get" and file_exists($cache_file))   | 
            
                            
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                            return file_get_contents($cache_file);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        else if($action == "set")   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            file_put_contents($cache_file, $data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->cache_file = $cache_file;  | 
            
                            
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                        return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function _testInvalidUrl($force_curl = false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl = new Quandl($this->api_key, "json");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl->force_curl = $quandl->no_ssl_verify = $force_curl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $quandl->getSymbol("INVALID/SYMBOL", $this->dates); | 
            
                            
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                        $this->assertEquals(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $quandl->error,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            "URL not found or invalid URL",   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            "TEST invalidUrl response"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function _testGetList($force_curl = false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl = new Quandl($this->api_key);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl->force_curl = $quandl->no_ssl_verify = $force_curl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $quandl->getList("WIKI", 1, 223); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            223,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            count($result->docs),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            "TEST getList count"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function _testGetSearch($force_curl = false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl = new Quandl($this->api_key);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl->force_curl = $quandl->no_ssl_verify = $force_curl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $quandl->getSearch("crud oil", 1, 220); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals(220, count($result->docs), "TEST getSearch count");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function _testCache($force_curl = false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl = new Quandl($this->api_key);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $quandl->force_curl = $quandl->no_ssl_verify = $force_curl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                                     | 
                
                 | 
                        $quandl->cache_handler = array($this, "cacheHandler");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                        $result = $quandl->getSymbol($this->symbol, $this->dates);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                        $count = count($result->data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                          | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                        $this->assertFalse($quandl->was_cached, "TEST was_cache should be false");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                        $result = $quandl->getSymbol($this->symbol, $this->dates);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                          | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                        $this->assertEquals(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                        	$count,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                        	count($result->data),   | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                            "TEST count before and after cache should match"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                		);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                        $this->assertTrue($quandl->was_cached, "TEST was_cache should be true");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                     * @param string $format  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                     * @param integer $length  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                    private function _testGetSymbol($format, $length, $force_curl = false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                        $quandl = new Quandl($this->api_key, $format);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                        $quandl->force_curl = $quandl->no_ssl_verify = $force_curl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                        $result = $quandl->getSymbol($this->symbol, $this->dates);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                        $quandl_format = $format;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                          | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                        if(is_object($result)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                            $result = serialize($result);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                            $quandl_format = "json";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    164
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    165
                 | 
                                    
                                                     | 
                
                 | 
                        $this->assertGreaterThan(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    166
                 | 
                                    
                                                     | 
                
                 | 
                            $length,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
                 | 
                                    
                                                     | 
                
                 | 
                            strlen($result),   | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    168
                 | 
                                    
                                                     | 
                
                 | 
                            "TEST $format length");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    170
                 | 
                                    
                                                     | 
                
                 | 
                        $url_expected = "https://www.quandl.com/api/v1/datasets/{$this->symbol}.{$quandl_format}?trim_start={$this->dates['trim_start']}&trim_end={$this->dates['trim_end']}&auth_token={$this->api_key}"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    171
                 | 
                                    
                                                     | 
                
                 | 
                          | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    172
                 | 
                                    
                                                     | 
                
                 | 
                        $this->assertEquals(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    173
                 | 
                                    
                                                     | 
                
                 | 
                            $url_expected,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
                 | 
                                    
                                                     | 
                
                 | 
                            $quandl->last_url,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    175
                 | 
                                    
                                                     | 
                
                 | 
                            "TEST $format url");  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    176
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    177
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    178
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
PHP has two types of connecting operators (logical operators, and boolean operators):
and&&or||The difference between these is the order in which they are executed. In most cases, you would want to use a boolean operator like
&&, or||.Let’s take a look at a few examples:
Logical Operators are used for Control-Flow
One case where you explicitly want to use logical operators is for control-flow such as this:
Since
dieintroduces problems of its own, f.e. it makes our code hardly testable, and prevents any kind of more sophisticated error handling; you probably do not want to use this in real-world code. Unfortunately, logical operators cannot be combined withthrowat this point:These limitations lead to logical operators rarely being of use in current PHP code.