Issues in Traversable.php (master) - Issues in master - TimeToogo/Pinq - Measure and Improve Code Quality continuously with Scrutinizer

Issues (70)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

Source/Traversable.php (6 issues)

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Duplication 6

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Informational 6

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<?php

namespace Pinq;

use Pinq\Iterators\IIteratorScheme;

/**
 * The standard traversable class, fully implements the traversable API
 * using iterators to achieve lazy evaluation
 *
 * @author Elliot Levin <[email protected]>
 */
class Traversable implements ITraversable, Interfaces\IOrderedTraversable
{
    /**
     * The iterator scheme used in the traversable instance.
     *
     * @var IIteratorScheme
     */
    protected $scheme;

    /**
     * The source traversable.
     *
     * @var Traversable|null
     */
    protected $source;

    /**
     * The element iterator for the traversable.
     *
     * @var \Traversable
     */
    protected $elements;

    public function __construct($elements = [], IIteratorScheme $scheme = null, Traversable $source = null)
    {
        $this->scheme   = $scheme ?: Iterators\SchemeProvider::getDefault();
        $this->source   = $source;
        $this->elements = $this->scheme->toIterator($elements);
    }

    /**
     * Constructs a new traversable object from the supplied elements.
     *
     * @param array|\Traversable   $elements
     * @param IIteratorScheme|null $scheme
     * @param Traversable|null     $source
     *
     * @return ITraversable
     */
    public static function from($elements, IIteratorScheme $scheme = null, Traversable $source = null)
    {
        return new static($elements, $scheme, $source);
    }

    /**
     * Returns a callable for the traversable constructor.
     *
     * @param IIteratorScheme|null $scheme
     * @param Traversable|null     $source
     *
     * @return callable
     */
    public static function factory(IIteratorScheme $scheme = null, Traversable $source = null)
    {
        //static:: doesn't work in closures?
        $static = get_called_class();

        return function ($elements) use ($static, $scheme, $source) {
            return $static::from($elements, $scheme, $source);
        };
    }

    /**
     * Returns a callable factory to construct an equivalent
     * instance with the supplied elements.
     *
     * @return callable
     */
    final protected function scopedSelfFactory()
    {
        return function ($elements) {
            return $this->constructScopedSelf($elements);
        };
    }

    /**
     * Returns a new instance of the traversable with the scoped elements
     * and same scheme and source.
     *
     * @param array|\Traversable $elements
     *
     * @return static
     */
    protected function constructScopedSelf($elements)
    {
        return static::from($elements, $this->scheme, $this->source ?: $this);
    }

    public function isSource()
    {
        return $this->source === null;
    }

    public function getSource()
    {
        return $this->source ?: $this;
    }

    public function asArray()
    {
        return $this->scheme->toArray($this->elements);
    }

    public function getIterator()
    {
        return $this->scheme->arrayCompatibleIterator($this->getTrueIterator());
    }

    public function getTrueIterator()
    {
        return $this->elements;
    }

    public function getIteratorScheme()
    {
        return $this->scheme;
    }

    public function asTraversable()
    {
        return $this;
    }

    public function asCollection()
    {
        return new Collection($this->elements, $this->scheme);
    }

    /**
     * @return Iterators\IOrderedMap
     */
    protected function asOrderedMap()
    {
        return $this->elements instanceof Iterators\IOrderedMap ?
                $this->elements : $this->scheme->createOrderedMap($this->elements);
    }

    public function iterate(callable $function)
    {
        $this->scheme->walk($this->elements, $function);
    }

    // <editor-fold defaultstate="collapsed" desc="Querying">

    public function first()
    {
        foreach ($this->elements as $value) {
            return $value;
        }

        return null;
    }

    public function last()
    {
        $value = null;

        foreach ($this->elements as $value) {

        }

        return $value;
    }

    public function where(callable $predicate)
    {
        return $this->constructScopedSelf(
                $this->scheme->filterIterator(
                        $this->elements,
                        $predicate
                )
        );
    }

    public function orderByAscending(callable $function)
    {
        return $this->constructScopedSelf(
                $this->scheme->orderedIterator(
                        $this->elements,
                        $function,
                        true
                )
        );
    }

    public function orderByDescending(callable $function)
    {
        return $this->constructScopedSelf(
                $this->scheme->orderedIterator(
                        $this->elements,
                        $function,
                        false
                )
        );
    }

    public function orderBy(callable $function, $direction)
    {
        return $direction === Direction::DESCENDING ?
                $this->orderByDescending($function) : $this->orderByAscending($function);
    }

    /**
     * Verifies that the traversable is ordered.
     *
     * @param string $method The called method name
     *
     * @return Iterators\IOrderedIterator
     * @throws PinqException
     */
    private function validateIsOrdered($method)
    {
        $innerIterator = $this->elements;
        if (!($innerIterator instanceof Iterators\IOrderedIterator)) {
            throw new PinqException(
                    'Invalid call to %s: %s::%s must be called first.',
                    $method,
                    __CLASS__,
                    'orderBy');
        }

        return $innerIterator;
    }

    public function thenBy(callable $function, $direction)
    {
        return $this->constructScopedSelf(
                $this->validateIsOrdered(__METHOD__)->thenOrderBy(
                        $function,
                        $direction !== Direction::DESCENDING
                )
        );
    }

    public function thenByAscending(callable $function)
    {
        return $this->constructScopedSelf(
                $this->validateIsOrdered(__METHOD__)
                        ->thenOrderBy($function, true)
        );
    }

    public function thenByDescending(callable $function)
    {
        return $this->constructScopedSelf(
                $this->validateIsOrdered(__METHOD__)
                        ->thenOrderBy($function, false)
        );
    }

    public function skip($amount)
    {
        return $this->constructScopedSelf(
                $this->scheme->rangeIterator(
                        $this->elements,
                        $amount,
                        null
                )
        );
    }

    public function take($amount)
    {
        return $this->constructScopedSelf(
                $this->scheme->rangeIterator(
                        $this->elements,
                        0,
                        $amount
                )
        );
    }

    public function slice($start, $amount)
    {
        return $this->constructScopedSelf(
                $this->scheme->rangeIterator(
                        $this->elements,
                        $start,
                        $amount
                )
        );
    }

    public function indexBy(callable $function)
    {
        return $this->constructScopedSelf(
                $this->scheme->uniqueKeyIterator(
                        $this->scheme->projectionIterator(
                                $this->elements,
                                $function,
                                null
                        )
                )
        );
    }

    public function keys()

    {
        return $this->constructScopedSelf(
                $this->scheme->reindexerIterator(
                        $this->scheme->projectionIterator(
                                $this->elements,
                                null,
                                function ($value, $key) {
                                    return $key;
                                }
                        )
                )
        );
    }

    public function reindex()
    {
        return $this->constructScopedSelf(
                $this->scheme->reindexerIterator($this->elements)
        );
    }

    public function groupBy(callable $function)
    {
        return $this->constructScopedSelf(
                $this->scheme->groupedIterator(
                        $this->elements,
                        $function,
                        $this->scopedSelfFactory()
                )
        );
    }

    public function join($values)

    {
        return new Connectors\JoiningTraversable(
                $this->scheme,
                $this->scheme->joinIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                ),
                $this->scopedSelfFactory());
    }

    public function groupJoin($values)

    {
        return new Connectors\JoiningTraversable(
                $this->scheme,
                $this->scheme->groupJoinIterator(
                        $this->elements,
                        $this->scheme->toIterator($values),
                        $this->scopedSelfFactory()
                ),
                $this->scopedSelfFactory());
    }

    public function unique()
    {
        return $this->constructScopedSelf($this->scheme->uniqueIterator($this->elements));
    }

    public function select(callable $function)
    {
        return $this->constructScopedSelf(
                $this->scheme->projectionIterator(
                        $this->elements,
                        null,
                        $function
                )
        );
    }

    public function selectMany(callable $function)

    {
        $projectionIterator =
                $this->scheme->projectionIterator(
                        $this->elements,
                        null,
                        $function
                );

        return $this->constructScopedSelf($this->scheme->flattenedIterator($projectionIterator));
    }

    // </editor-fold>

    // <editor-fold defaultstate="collapsed" desc="Set Operations">

    public function union($values)
    {
        return $this->constructScopedSelf(
                $this->scheme->unionIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                )
        );
    }

    public function intersect($values)
    {
        return $this->constructScopedSelf(
                $this->scheme->intersectionIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                )
        );
    }

    public function difference($values)
    {
        return $this->constructScopedSelf(
                $this->scheme->differenceIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                )
        );
    }

    // </editor-fold>

    // <editor-fold defaultstate="collapsed" desc="Multiset Operations">

    public function append($values)
    {
        return $this->constructScopedSelf(
                $this->scheme->appendIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                )
        );
    }

    public function whereIn($values)
    {
        return $this->constructScopedSelf(
                $this->scheme->whereInIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                )
        );
    }

    public function except($values)
    {
        return $this->constructScopedSelf(
                $this->scheme->exceptIterator(
                        $this->elements,
                        $this->scheme->toIterator($values)
                )
        );
    }

    // </editor-fold>

    // <editor-fold defaultstate="collapsed" desc="Array Access">

    public function offsetExists($index)
    {
        foreach ($this->keys() as $key) {
            if ($key === $index) {
                return true;
            }
        }

        return false;
    }

    public function offsetGet($index)
    {
        foreach ($this->select(function ($value, $key) { return [$key, $value]; }) as $element) {
            if ($element[0] === $index) {
                return $element[1];
            }
        }

        return false;
    }

    public function offsetSet($index, $value)
    {
        throw PinqException::notSupported(__METHOD__);
    }

    public function offsetUnset($index)
    {
        throw PinqException::notSupported(__METHOD__);
    }

    // </editor-fold>

    // <editor-fold defaultstate="collapsed" desc="Aggregates">

    public function count()
    {
        if($this->elements instanceof \Countable) {
            return $this->elements->count();
        }

        $count = 0;

        foreach($this->elements as $value) {
            $count++;
        }

        return $count;
    }

    public function isEmpty()
    {
        foreach ($this->elements as $value) {
            return false;
        }

        return true;
    }

    public function contains($value)
    {
        foreach ($this->elements as $containedValue) {
            if ($containedValue === $value) {
                return true;
            }
        }

        return false;
    }

    public function aggregate(callable $function)
    {
        $hasValue       = false;
        $aggregateValue = null;

        foreach ($this->elements as $value) {
            if (!$hasValue) {
                $aggregateValue = $value;
                $hasValue       = true;
                continue;
            }

            $aggregateValue = $function($aggregateValue, $value);
        }

        return $aggregateValue;
    }

    private function mapIterator(callable $function = null)
    {
        if ($function === null) {
            return $this->elements;
        } else {
            return $this->scheme->projectionIterator(
                    $this->elements,
                    null,
                    $function
            );
        }
    }

    public function maximum(callable $function = null)

    {
        $max = null;

        foreach ($this->mapIterator($function) as $value) {
            if ($value > $max) {
                $max = $value;
            }
        }

        return $max;
    }

    public function minimum(callable $function = null)
    {
        $min = null;
        $first = true;

        foreach ($this->mapIterator($function) as $value) {
            if ($value < $min || $first) {
                $min   = $value;
                $first = false;
            }
        }

        return $min;
    }

    public function sum(callable $function = null)

    {
        $sum = null;

        foreach ($this->mapIterator($function) as $value) {
            $sum += $value;
        }

        return $sum;
    }

    public function average(callable $function = null)
    {
        $sum = null;
        $count = 0;

        foreach ($this->mapIterator($function) as $value) {
            $sum += $value;
            $count++;
        }

        return $count === 0 ? null : $sum / $count;
    }

    public function all(callable $function = null)
    {
        foreach ($this->mapIterator($function) as $value) {
            if (!$value) {
                return false;
            }
        }

        return true;
    }

    public function any(callable $function = null)
    {
        foreach ($this->mapIterator($function) as $value) {
            if ($value) {
                return true;
            }
        }

        return false;
    }

    public function implode($delimiter, callable $function = null)
    {
        $string = '';

        foreach ($this->mapIterator($function) as $value) {
            $string .= $delimiter . $value;
        }

        return $string === '' ? '' : substr($string, strlen($delimiter));
    }

    // </editor-fold>
}


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Issues (70)

Security Analysis no request data

Source/Traversable.php (6 issues)

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Introduced By

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1		<?php
2
3		namespace Pinq;
4
5		use Pinq\Iterators\IIteratorScheme;
6
7		/**
8		* The standard traversable class, fully implements the traversable API
9		* using iterators to achieve lazy evaluation
10		*
11		* @author Elliot Levin <[email protected]>
12		*/
13		class Traversable implements ITraversable, Interfaces\IOrderedTraversable
14		{
15		/**
16		* The iterator scheme used in the traversable instance.
17		*
18		* @var IIteratorScheme
19		*/
20		protected $scheme;
21
22		/**
23		* The source traversable.
24		*
25		* @var Traversable\|null
26		*/
27		protected $source;
28
29		/**
30		* The element iterator for the traversable.
31		*
32		* @var \Traversable
33		*/
34		protected $elements;
35
36		public function __construct($elements = [], IIteratorScheme $scheme = null, Traversable $source = null)
37		{
38		$this->scheme = $scheme ?: Iterators\SchemeProvider::getDefault();
39		$this->source = $source;
40		$this->elements = $this->scheme->toIterator($elements);
41		}
42
43		/**
44		* Constructs a new traversable object from the supplied elements.
45		*
46		* @param array\|\Traversable $elements
47		* @param IIteratorScheme\|null $scheme
48		* @param Traversable\|null $source
49		*
50		* @return ITraversable
51		*/
52		public static function from($elements, IIteratorScheme $scheme = null, Traversable $source = null)
53		{
54		return new static($elements, $scheme, $source);
55		}
56
57		/**
58		* Returns a callable for the traversable constructor.
59		*
60		* @param IIteratorScheme\|null $scheme
61		* @param Traversable\|null $source
62		*
63		* @return callable
64		*/
65		public static function factory(IIteratorScheme $scheme = null, Traversable $source = null)
66		{
67		//static:: doesn't work in closures?
68		$static = get_called_class();
69
70		return function ($elements) use ($static, $scheme, $source) {
71		return $static::from($elements, $scheme, $source);
72		};
73		}
74
75		/**
76		* Returns a callable factory to construct an equivalent
77		* instance with the supplied elements.
78		*
79		* @return callable
80		*/
81		final protected function scopedSelfFactory()
82		{
83		return function ($elements) {
84		return $this->constructScopedSelf($elements);
85		};
86		}
87
88		/**
89		* Returns a new instance of the traversable with the scoped elements
90		* and same scheme and source.
91		*
92		* @param array\|\Traversable $elements
93		*
94		* @return static
95		*/
96		protected function constructScopedSelf($elements)
97		{
98		return static::from($elements, $this->scheme, $this->source ?: $this);
99		}
100
101		public function isSource()
102		{
103		return $this->source === null;
104		}
105
106		public function getSource()
107		{
108		return $this->source ?: $this;
109		}
110
111		public function asArray()
112		{
113		return $this->scheme->toArray($this->elements);
114		}
115
116		public function getIterator()
117		{
118		return $this->scheme->arrayCompatibleIterator($this->getTrueIterator());
119		}
120
121		public function getTrueIterator()
122		{
123		return $this->elements;
124		}
125
126		public function getIteratorScheme()
127		{
128		return $this->scheme;
129		}
130
131		public function asTraversable()
132		{
133		return $this;
134		}
135
136		public function asCollection()
137		{
138		return new Collection($this->elements, $this->scheme);
139		}
140
141		/**
142		* @return Iterators\IOrderedMap
143		*/
144		protected function asOrderedMap()
145		{
146		return $this->elements instanceof Iterators\IOrderedMap ?
147		$this->elements : $this->scheme->createOrderedMap($this->elements);
148		}
149
150		public function iterate(callable $function)
151		{
152		$this->scheme->walk($this->elements, $function);
153		}
154
155		// <editor-fold defaultstate="collapsed" desc="Querying">
156
157		public function first()
158		{
159		foreach ($this->elements as $value) {
160		return $value;
161		}
162
163		return null;
164		}
165
166		public function last()
167		{
168		$value = null;
169
170		foreach ($this->elements as $value) {
171
172		}
173
174		return $value;
175		}
176
177		public function where(callable $predicate)
178		{
179		return $this->constructScopedSelf(
180		$this->scheme->filterIterator(
181		$this->elements,
182		$predicate
183		)
184		);
185		}
186
187		public function orderByAscending(callable $function)
188		{
189		return $this->constructScopedSelf(
190		$this->scheme->orderedIterator(
191		$this->elements,
192		$function,
193		true
194		)
195		);
196		}
197
198		public function orderByDescending(callable $function)
199		{
200		return $this->constructScopedSelf(
201		$this->scheme->orderedIterator(
202		$this->elements,
203		$function,
204		false
205		)
206		);
207		}
208
209		public function orderBy(callable $function, $direction)
210		{
211		return $direction === Direction::DESCENDING ?
212		$this->orderByDescending($function) : $this->orderByAscending($function);
213		}
214
215		/**
216		* Verifies that the traversable is ordered.
217		*
218		* @param string $method The called method name
219		*
220		* @return Iterators\IOrderedIterator
221		* @throws PinqException
222		*/
223		private function validateIsOrdered($method)
224		{
225		$innerIterator = $this->elements;
226		if (!($innerIterator instanceof Iterators\IOrderedIterator)) {
227		throw new PinqException(
228		'Invalid call to %s: %s::%s must be called first.',
229		$method,
230		__CLASS__,
231		'orderBy');
232		}
233
234		return $innerIterator;
235		}
236
237		public function thenBy(callable $function, $direction)
238		{
239		return $this->constructScopedSelf(
240		$this->validateIsOrdered(__METHOD__)->thenOrderBy(
241		$function,
242		$direction !== Direction::DESCENDING
243		)
244		);
245		}
246
247		public function thenByAscending(callable $function)
248		{
249		return $this->constructScopedSelf(
250		$this->validateIsOrdered(__METHOD__)
251		->thenOrderBy($function, true)
252		);
253		}
254
255		public function thenByDescending(callable $function)
256		{
257		return $this->constructScopedSelf(
258		$this->validateIsOrdered(__METHOD__)
259		->thenOrderBy($function, false)
260		);
261		}
262
263		public function skip($amount)
264		{
265		return $this->constructScopedSelf(
266		$this->scheme->rangeIterator(
267		$this->elements,
268		$amount,
269		null
270		)
271		);
272		}
273
274		public function take($amount)
275		{
276		return $this->constructScopedSelf(
277		$this->scheme->rangeIterator(
278		$this->elements,
279		0,
280		$amount
281		)
282		);
283		}
284
285		public function slice($start, $amount)
286		{
287		return $this->constructScopedSelf(
288		$this->scheme->rangeIterator(
289		$this->elements,
290		$start,
291		$amount
292		)
293		);
294		}
295
296		public function indexBy(callable $function)
297		{
298		return $this->constructScopedSelf(
299		$this->scheme->uniqueKeyIterator(
300		$this->scheme->projectionIterator(
301		$this->elements,
302		$function,
303		null
304		)
305		)
306		);
307		}
308
309	View Code Duplication	public function keys()
		0 ignored issues – show Duplication introduced 2017-09-06 06:30 UTC by Report Bug Copy Issue Report Show Similar Issues like this 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...
310		{
311		return $this->constructScopedSelf(
312		$this->scheme->reindexerIterator(
313		$this->scheme->projectionIterator(
314		$this->elements,
315		null,
316		function ($value, $key) {
317		return $key;
318		}
319		)
320		)
321		);
322		}
323
324		public function reindex()
325		{
326		return $this->constructScopedSelf(
327		$this->scheme->reindexerIterator($this->elements)
328		);
329		}
330
331		public function groupBy(callable $function)
332		{
333		return $this->constructScopedSelf(
334		$this->scheme->groupedIterator(
335		$this->elements,
336		$function,
337		$this->scopedSelfFactory()
338		)
339		);
340		}
341
342	View Code Duplication	public function join($values)
		0 ignored issues – show Duplication introduced 2017-09-06 06:30 UTC by Report Bug Copy Issue Report Show Similar Issues like this 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...
343		{
344		return new Connectors\JoiningTraversable(
345		$this->scheme,
346		$this->scheme->joinIterator(
347		$this->elements,
348		$this->scheme->toIterator($values)
349		),
350		$this->scopedSelfFactory());
351		}
352
353	View Code Duplication	public function groupJoin($values)
		0 ignored issues – show Duplication introduced 2017-09-06 06:30 UTC by Report Bug Copy Issue Report Show Similar Issues like this 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...
354		{
355		return new Connectors\JoiningTraversable(
356		$this->scheme,
357		$this->scheme->groupJoinIterator(
358		$this->elements,
359		$this->scheme->toIterator($values),
360		$this->scopedSelfFactory()
361		),
362		$this->scopedSelfFactory());
363		}
364
365		public function unique()
366		{
367		return $this->constructScopedSelf($this->scheme->uniqueIterator($this->elements));
368		}
369
370		public function select(callable $function)
371		{
372		return $this->constructScopedSelf(
373		$this->scheme->projectionIterator(
374		$this->elements,
375		null,
376		$function
377		)
378		);
379		}
380
381	View Code Duplication	public function selectMany(callable $function)
		0 ignored issues – show Duplication introduced 2017-09-06 06:30 UTC by Report Bug Copy Issue Report Show Similar Issues like this 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...
382		{
383		$projectionIterator =
384		$this->scheme->projectionIterator(
385		$this->elements,
386		null,
387		$function
388		);
389
390		return $this->constructScopedSelf($this->scheme->flattenedIterator($projectionIterator));
391		}
392
393		// </editor-fold>
394
395		// <editor-fold defaultstate="collapsed" desc="Set Operations">
396
397		public function union($values)
398		{
399		return $this->constructScopedSelf(
400		$this->scheme->unionIterator(
401		$this->elements,
402		$this->scheme->toIterator($values)
403		)
404		);
405		}
406
407		public function intersect($values)
408		{
409		return $this->constructScopedSelf(
410		$this->scheme->intersectionIterator(
411		$this->elements,
412		$this->scheme->toIterator($values)
413		)
414		);
415		}
416
417		public function difference($values)
418		{
419		return $this->constructScopedSelf(
420		$this->scheme->differenceIterator(
421		$this->elements,
422		$this->scheme->toIterator($values)
423		)
424		);
425		}
426
427		// </editor-fold>
428
429		// <editor-fold defaultstate="collapsed" desc="Multiset Operations">
430
431		public function append($values)
432		{
433		return $this->constructScopedSelf(
434		$this->scheme->appendIterator(
435		$this->elements,
436		$this->scheme->toIterator($values)
437		)
438		);
439		}
440
441		public function whereIn($values)
442		{
443		return $this->constructScopedSelf(
444		$this->scheme->whereInIterator(
445		$this->elements,
446		$this->scheme->toIterator($values)
447		)
448		);
449		}
450
451		public function except($values)
452		{
453		return $this->constructScopedSelf(
454		$this->scheme->exceptIterator(
455		$this->elements,
456		$this->scheme->toIterator($values)
457		)
458		);
459		}
460
461		// </editor-fold>
462
463		// <editor-fold defaultstate="collapsed" desc="Array Access">
464
465		public function offsetExists($index)
466		{
467		foreach ($this->keys() as $key) {
468		if ($key === $index) {
469		return true;
470		}
471		}
472
473		return false;
474		}
475
476		public function offsetGet($index)
477		{
478		foreach ($this->select(function ($value, $key) { return [$key, $value]; }) as $element) {
479		if ($element[0] === $index) {
480		return $element[1];
481		}
482		}
483
484		return false;
485		}
486
487		public function offsetSet($index, $value)
488		{
489		throw PinqException::notSupported(__METHOD__);
490		}
491
492		public function offsetUnset($index)
493		{
494		throw PinqException::notSupported(__METHOD__);
495		}
496
497		// </editor-fold>
498
499		// <editor-fold defaultstate="collapsed" desc="Aggregates">
500
501		public function count()
502		{
503		if($this->elements instanceof \Countable) {
504		return $this->elements->count();
505		}
506
507		$count = 0;
508
509		foreach($this->elements as $value) {
510		$count++;
511		}
512
513		return $count;
514		}
515
516		public function isEmpty()
517		{
518		foreach ($this->elements as $value) {
519		return false;
520		}
521
522		return true;
523		}
524
525		public function contains($value)
526		{
527		foreach ($this->elements as $containedValue) {
528		if ($containedValue === $value) {
529		return true;
530		}
531		}
532
533		return false;
534		}
535
536		public function aggregate(callable $function)
537		{
538		$hasValue = false;
539		$aggregateValue = null;
540
541		foreach ($this->elements as $value) {
542		if (!$hasValue) {
543		$aggregateValue = $value;
544		$hasValue = true;
545		continue;
546		}
547
548		$aggregateValue = $function($aggregateValue, $value);
549		}
550
551		return $aggregateValue;
552		}
553
554		private function mapIterator(callable $function = null)
555		{
556		if ($function === null) {
557		return $this->elements;
558		} else {
559		return $this->scheme->projectionIterator(
560		$this->elements,
561		null,
562		$function
563		);
564		}
565		}
566
567	View Code Duplication	public function maximum(callable $function = null)
		0 ignored issues – show Duplication introduced 2017-09-06 06:30 UTC by Report Bug Copy Issue Report Show Similar Issues like this 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...
568		{
569		$max = null;
570
571		foreach ($this->mapIterator($function) as $value) {
572		if ($value > $max) {
573		$max = $value;
574		}
575		}
576
577		return $max;
578		}
579
580		public function minimum(callable $function = null)
581		{
582		$min = null;
583		$first = true;
584
585		foreach ($this->mapIterator($function) as $value) {
586		if ($value < $min \|\| $first) {
587		$min = $value;
588		$first = false;
589		}
590		}
591
592		return $min;
593		}
594
595	View Code Duplication	public function sum(callable $function = null)
		0 ignored issues – show Duplication introduced 2017-09-06 06:30 UTC by Report Bug Copy Issue Report Show Similar Issues like this 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...
596		{
597		$sum = null;
598
599		foreach ($this->mapIterator($function) as $value) {
600		$sum += $value;
601		}
602
603		return $sum;
604		}
605
606		public function average(callable $function = null)
607		{
608		$sum = null;
609		$count = 0;
610
611		foreach ($this->mapIterator($function) as $value) {
612		$sum += $value;
613		$count++;
614		}
615
616		return $count === 0 ? null : $sum / $count;
617		}
618
619		public function all(callable $function = null)
620		{
621		foreach ($this->mapIterator($function) as $value) {
622		if (!$value) {
623		return false;
624		}
625		}
626
627		return true;
628		}
629
630		public function any(callable $function = null)
631		{
632		foreach ($this->mapIterator($function) as $value) {
633		if ($value) {
634		return true;
635		}
636		}
637
638		return false;
639		}
640
641		public function implode($delimiter, callable $function = null)
642		{
643		$string = '';
644
645		foreach ($this->mapIterator($function) as $value) {
646		$string .= $delimiter . $value;
647		}
648
649		return $string === '' ? '' : substr($string, strlen($delimiter));
650		}
651
652		// </editor-fold>
653		}
654

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