PhpQuickProfiler::gatherMemoryData() - Code Metrics - Inspection of "Adds some tests for new formatting functions in Di..." - jacobemerick/pqp - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 2f6da3...fdf5fc )

by Jacob

created 2015-12-06 21:53 UTC

PhpQuickProfiler::gatherMemoryData() A

↳ Parent: PhpQuickProfiler

Complexity

Conditions	1
Paths	1

Size

Total Lines	9
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes	4
Bugs	1	Features	1

Metric	Value
c	4
b	1
f	1
dl	0
loc	9
rs	9.6667
cc	1
eloc	6
nc	1
nop	0

<?php

/*****************************************
 * Title : PHP Quick Profiler Class
 * Author : Created by Ryan Campbell
 * URL : http://particletree.com/features/php-quick-profiler/
 * Description : This class processes the logs and organizes the data
 *  for output to the browser. Initialize this class with a start time
 *  at the beginning of your code, and then call the display method when
 *  your code is terminating.
*****************************************/

namespace Particletree\Pqp;

class PhpQuickProfiler
{

    /** @var  Particletree\Pqp\Console */
    protected $console;

    /** @var  integer */
    protected $startTime;

    /**
     * @param Particletree\Pqp\Console $console
     * @param integer                  $startTime
     */
    public function __construct(Console $console, $startTime = null)
    {
        $this->console = $console;


        if (is_null($startTime)) {
            $startTime = microtime(true);
        }
        $this->startTime = $startTime;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
    }
 
  /*-------------------------------------------
      AGGREGATE DATA ON THE FILES INCLUDED
  -------------------------------------------*/
  
  public function gatherFileData() {
    $files = get_included_files();
    $fileList = array();
    $fileTotals = array(
      "count" => count($files),
      "size" => 0,
      "largest" => 0,
    );

    foreach($files as $file) {
      $size = filesize($file);
      $fileList[] = array(
          'name' => $file,
          'size' => $this->getReadableFileSize($size)
        );
      $fileTotals['size'] += $size;
      if($size > $fileTotals['largest']) $fileTotals['largest'] = $size;
    }
    
    $fileTotals['size'] = $this->getReadableFileSize($fileTotals['size']);
    $fileTotals['largest'] = $this->getReadableFileSize($fileTotals['largest']);

    return array(
      'files' => $fileList,
      'fileTotals' => $fileTotals
    );
  }

    /**
     * Get data about memory usage of the application
     *
     * @returns array
     */
    public function gatherMemoryData()
    {
        $usedMemory = memory_get_peak_usage();
        $allowedMemory = ini_get('memory_limit');
        return array(
            'used'    => $usedMemory,
            'allowed' => $allowedMemory
        );
    }
  
  /*--------------------------------------------------------
       QUERY DATA -- DATABASE OBJECT WITH LOGGING REQUIRED
  ----------------------------------------------------------*/
  
  public function gatherQueryData() {
    $queryTotals = array();
    $queryTotals['count'] = 0;
    $queryTotals['time'] = 0;
    $queries = array();
    
    if($this->db != '') {
      $queryTotals['count'] += $this->db->queryCount;
class MyClass { }

$x = new MyClass();
$x->foo = true;
      foreach($this->db->queries as $query) {
        $query = $this->attemptToExplainQuery($query);
        $queryTotals['time'] += $query['time'];
        $query['time'] = $this->getReadableTime($query['time']);
        $queries[] = $query;
      }
    }
    
    $queryTotals['time'] = $this->getReadableTime($queryTotals['time']);
    $this->output['queries'] = $queries;
class MyClass { }

$x = new MyClass();
$x->foo = true;
    $this->output['queryTotals'] = $queryTotals;
  }
  
  /*--------------------------------------------------------
       CALL SQL EXPLAIN ON THE QUERY TO FIND MORE INFO
  ----------------------------------------------------------*/
  
  function attemptToExplainQuery($query) {

    try {
      $sql = 'EXPLAIN '.$query['sql'];
      $rs = $this->db->query($sql);
    }
    catch(Exception $e) {}

    if($rs) {
      $row = mysql_fetch_array($rs, MYSQL_ASSOC);
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
      $query['explain'] = $row;
    }
    return $query;
  }

    /**
     * Get data about speed of the application
     *
     * @returns array
     */
    public function gatherSpeedData()
    {
        $elapsedTime = microtime(true) - $this->startTime;
        $allowedTime = ini_get('max_execution_time');
        return array(
            'elapsed' => $elapsedTime,
            'allowed' => $allowedTime
        );
    }
  
  /*-------------------------------------------
       HELPER FUNCTIONS TO FORMAT DATA
  -------------------------------------------*/
  
  public function getReadableFileSize($size, $retstring = null) {
          // adapted from code at http://aidanlister.com/repos/v/function.size_readable.php
         $sizes = array('bytes', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB');

         if ($retstring === null) { $retstring = '%01.2f %s'; }

    $lastsizestring = end($sizes);

    foreach ($sizes as $sizestring) {
          if ($size < 1024) { break; }
             if ($sizestring != $lastsizestring) { $size /= 1024; }
         }
         if ($sizestring == $sizes[0]) { $retstring = '%01d %s'; } // Bytes aren't normally fractional
foreach ($a as $b) {
}

// $b is defined here only if $a has elements, for example if $a is array()
// then $b would not be defined here. To avoid that, we recommend to set a
// default value for $b.


// Better
$b = 0; // or whatever default makes sense in your context
foreach ($a as $b) {
}

// $b is now guaranteed to be defined here.
         return sprintf($retstring, $size, $sizestring);
  }

    /**
     * Static formatter for human-readable time
     * Only handles time up to 60 minutes gracefully
     *
     * @param integer $time time in seconds
     * @return string
     */
    public static function getReadableTime($time)

    {
        $unit = 's';

        if ($time < 1) {
            $time *= 1000;
            $unit = 'ms';
        } else if ($time > 60) {
            $time /= 60;
            $unit = 'm';
        }

        $time = number_format($time, 3);
        return "{$time} {$unit}";
    }
  

    /**
     * Triggers end display of the profiling data
     *
     * @param Display $display
     */
    public function display(Display $display)
    {
        $display->setConsole($this->console);
        $display->setFileData($this->gatherFileData());
        $display->setMemoryData($this->gatherMemoryData());
        $display->setQueryData($this->gatherQueryData());
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        $display->setSpeedData($this->gatherSpeedData());

        $display();
    }
}


1		<?php
2
3		/*****************************************
4		* Title : PHP Quick Profiler Class
5		* Author : Created by Ryan Campbell
6		* URL : http://particletree.com/features/php-quick-profiler/
7		* Description : This class processes the logs and organizes the data
8		* for output to the browser. Initialize this class with a start time
9		* at the beginning of your code, and then call the display method when
10		* your code is terminating.
11		*****************************************/
12
13		namespace Particletree\Pqp;
14
15		class PhpQuickProfiler
16		{
17
18		/** @var Particletree\Pqp\Console */
19		protected $console;
20
21		/** @var integer */
22		protected $startTime;
23
24		/**
25		* @param Particletree\Pqp\Console $console
26		* @param integer $startTime
27		*/
28		public function __construct(Console $console, $startTime = null)
29		{
30		$this->console = $console;
		0 ignored issues – show Documentation Bug introduced 2015-12-06 03:03 UTC by Report Bug Copy Issue Report It seems like `$console` of type `object<Particletree\Pqp\Console>` is incompatible with the declared type `object<Particletree\Pqp\Particletree\Pqp\Console>` of property `$console`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
31
32		if (is_null($startTime)) {
33		$startTime = microtime(true);
34		}
35		$this->startTime = $startTime;
		0 ignored issues – show Documentation Bug introduced 2015-12-06 03:03 UTC by Report Bug Copy Issue Report It seems like `$startTime` can also be of type `double`. However, the property `$startTime` is declared as type `integer`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
36		}
37
38		/*-------------------------------------------
39		AGGREGATE DATA ON THE FILES INCLUDED
40		-------------------------------------------*/
41
42		public function gatherFileData() {
43		$files = get_included_files();
44		$fileList = array();
45		$fileTotals = array(
46		"count" => count($files),
47		"size" => 0,
48		"largest" => 0,
49		);
50
51		foreach($files as $file) {
52		$size = filesize($file);
53		$fileList[] = array(
54		'name' => $file,
55		'size' => $this->getReadableFileSize($size)
56		);
57		$fileTotals['size'] += $size;
58		if($size > $fileTotals['largest']) $fileTotals['largest'] = $size;
59		}
60
61		$fileTotals['size'] = $this->getReadableFileSize($fileTotals['size']);
62		$fileTotals['largest'] = $this->getReadableFileSize($fileTotals['largest']);
63
64		return array(
65		'files' => $fileList,
66		'fileTotals' => $fileTotals
67		);
68		}
69
70		/**
71		* Get data about memory usage of the application
72		*
73		* @returns array
74		*/
75		public function gatherMemoryData()
76		{
77		$usedMemory = memory_get_peak_usage();
78		$allowedMemory = ini_get('memory_limit');
79		return array(
80		'used' => $usedMemory,
81		'allowed' => $allowedMemory
82		);
83		}
84
85		/*--------------------------------------------------------
86		QUERY DATA -- DATABASE OBJECT WITH LOGGING REQUIRED
87		----------------------------------------------------------*/
88
89		public function gatherQueryData() {
90		$queryTotals = array();
91		$queryTotals['count'] = 0;
92		$queryTotals['time'] = 0;
93		$queries = array();
94
95		if($this->db != '') {
96		$queryTotals['count'] += $this->db->queryCount;
		0 ignored issues – show Bug introduced 2015-12-04 12:13 UTC by Report Bug Copy Issue Report The property `db` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
97		foreach($this->db->queries as $query) {
98		$query = $this->attemptToExplainQuery($query);
99		$queryTotals['time'] += $query['time'];
100		$query['time'] = $this->getReadableTime($query['time']);
101		$queries[] = $query;
102		}
103		}
104
105		$queryTotals['time'] = $this->getReadableTime($queryTotals['time']);
106		$this->output['queries'] = $queries;
		0 ignored issues – show Bug introduced 2015-12-06 17:13 UTC by Report Bug Copy Issue Report The property `output` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
107		$this->output['queryTotals'] = $queryTotals;
108		}
109
110		/*--------------------------------------------------------
111		CALL SQL EXPLAIN ON THE QUERY TO FIND MORE INFO
112		----------------------------------------------------------*/
113
114		function attemptToExplainQuery($query) {
		0 ignored issues – show Best Practice introduced 2015-12-04 12:13 UTC by Report Bug Copy Issue Report It is generally recommended to explicitly declare the visibility for methods. Adding explicit visibility (`private`, `protected`, or `public`) is generally recommend to communicate to other developers how, and from where this method is intended to be used. Loading history...
115		try {
116		$sql = 'EXPLAIN '.$query['sql'];
117		$rs = $this->db->query($sql);
118		}
119		catch(Exception $e) {}
		0 ignored issues – show Coding Style Comprehensibility introduced 2015-12-04 12:13 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history... Bug introduced 2015-12-04 12:44 UTC by Report Bug Copy Issue Report The class `Particletree\Pqp\Exception` does not exist. Did you forget a USE statement, or did you not list all dependencies? Scrutinizer analyzes your `composer.json`/`composer.lock` file if available to determine the classes, and functions that are defined by your dependencies. It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis. Loading history...
120		if($rs) {
121		$row = mysql_fetch_array($rs, MYSQL_ASSOC);
		0 ignored issues – show Bug introduced 2015-12-04 12:13 UTC by Report Bug Copy Issue Report The variable `$rs` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
122		$query['explain'] = $row;
123		}
124		return $query;
125		}
126
127		/**
128		* Get data about speed of the application
129		*
130		* @returns array
131		*/
132		public function gatherSpeedData()
133		{
134		$elapsedTime = microtime(true) - $this->startTime;
135		$allowedTime = ini_get('max_execution_time');
136		return array(
137		'elapsed' => $elapsedTime,
138		'allowed' => $allowedTime
139		);
140		}
141
142		/*-------------------------------------------
143		HELPER FUNCTIONS TO FORMAT DATA
144		-------------------------------------------*/
145
146		public function getReadableFileSize($size, $retstring = null) {
147		// adapted from code at http://aidanlister.com/repos/v/function.size_readable.php
148		$sizes = array('bytes', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB');
149
150		if ($retstring === null) { $retstring = '%01.2f %s'; }
151
152		$lastsizestring = end($sizes);
153
154		foreach ($sizes as $sizestring) {
155		if ($size < 1024) { break; }
156		if ($sizestring != $lastsizestring) { $size /= 1024; }
157		}
158		if ($sizestring == $sizes[0]) { $retstring = '%01d %s'; } // Bytes aren't normally fractional
		0 ignored issues – show Bug introduced 2015-12-06 21:55 UTC by Report Bug Copy Issue Report The variable `$sizestring` seems to be defined by a `foreach` iteration on line `154`. Are you sure the iterator is never empty, otherwise this variable is not defined? It seems like you are relying on a variable being defined by an iteration: foreach ($a as $b) { } // $b is defined here only if $a has elements, for example if $a is array() // then $b would not be defined here. To avoid that, we recommend to set a // default value for $b. // Better $b = 0; // or whatever default makes sense in your context foreach ($a as $b) { } // $b is now guaranteed to be defined here. Loading history...
159		return sprintf($retstring, $size, $sizestring);
160		}
161
162		/**
163		* Static formatter for human-readable time
164		* Only handles time up to 60 minutes gracefully
165		*
166		* @param integer $time time in seconds
167		* @return string
168		*/
169	View Code Duplication	public static function getReadableTime($time)
		0 ignored issues – show Duplication introduced 2015-12-04 12:13 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
170		{
171		$unit = 's';
172
173		if ($time < 1) {
174		$time *= 1000;
175		$unit = 'ms';
176		} else if ($time > 60) {
177		$time /= 60;
178		$unit = 'm';
179		}
180
181		$time = number_format($time, 3);
182		return "{$time} {$unit}";
183		}
184
185
186		/**
187		* Triggers end display of the profiling data
188		*
189		* @param Display $display
190		*/
191		public function display(Display $display)
192		{
193		$display->setConsole($this->console);
194		$display->setFileData($this->gatherFileData());
195		$display->setMemoryData($this->gatherMemoryData());
196		$display->setQueryData($this->gatherQueryData());
		0 ignored issues – show Documentation introduced 2015-12-06 17:13 UTC by Report Bug Copy Issue Report `$this->gatherQueryData()` is of type `null`, but the function expects a `array`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
197		$display->setSpeedData($this->gatherSpeedData());
198
199		$display();
200		}
201		}
202

jacobemerick / pqp

Push — master ( 2f6da3...fdf5fc )

PhpQuickProfiler::gatherMemoryData() A

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Duplication

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