diff vendor/zendframework/zend-stdlib/src/ArrayUtils.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/zendframework/zend-stdlib/src/ArrayUtils.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,335 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Stdlib;
+
+use Traversable;
+use Zend\Stdlib\ArrayUtils\MergeRemoveKey;
+use Zend\Stdlib\ArrayUtils\MergeReplaceKeyInterface;
+
+/**
+ * Utility class for testing and manipulation of PHP arrays.
+ *
+ * Declared abstract, as we have no need for instantiation.
+ */
+abstract class ArrayUtils
+{
+    /**
+     * Compatibility Flag for ArrayUtils::filter
+     */
+    const ARRAY_FILTER_USE_BOTH = 1;
+
+    /**
+     * Compatibility Flag for ArrayUtils::filter
+     */
+    const ARRAY_FILTER_USE_KEY  = 2;
+
+    /**
+     * Test whether an array contains one or more string keys
+     *
+     * @param  mixed $value
+     * @param  bool  $allowEmpty    Should an empty array() return true
+     * @return bool
+     */
+    public static function hasStringKeys($value, $allowEmpty = false)
+    {
+        if (!is_array($value)) {
+            return false;
+        }
+
+        if (!$value) {
+            return $allowEmpty;
+        }
+
+        return count(array_filter(array_keys($value), 'is_string')) > 0;
+    }
+
+    /**
+     * Test whether an array contains one or more integer keys
+     *
+     * @param  mixed $value
+     * @param  bool  $allowEmpty    Should an empty array() return true
+     * @return bool
+     */
+    public static function hasIntegerKeys($value, $allowEmpty = false)
+    {
+        if (!is_array($value)) {
+            return false;
+        }
+
+        if (!$value) {
+            return $allowEmpty;
+        }
+
+        return count(array_filter(array_keys($value), 'is_int')) > 0;
+    }
+
+    /**
+     * Test whether an array contains one or more numeric keys.
+     *
+     * A numeric key can be one of the following:
+     * - an integer 1,
+     * - a string with a number '20'
+     * - a string with negative number: '-1000'
+     * - a float: 2.2120, -78.150999
+     * - a string with float:  '4000.99999', '-10.10'
+     *
+     * @param  mixed $value
+     * @param  bool  $allowEmpty    Should an empty array() return true
+     * @return bool
+     */
+    public static function hasNumericKeys($value, $allowEmpty = false)
+    {
+        if (!is_array($value)) {
+            return false;
+        }
+
+        if (!$value) {
+            return $allowEmpty;
+        }
+
+        return count(array_filter(array_keys($value), 'is_numeric')) > 0;
+    }
+
+    /**
+     * Test whether an array is a list
+     *
+     * A list is a collection of values assigned to continuous integer keys
+     * starting at 0 and ending at count() - 1.
+     *
+     * For example:
+     * <code>
+     * $list = array('a', 'b', 'c', 'd');
+     * $list = array(
+     *     0 => 'foo',
+     *     1 => 'bar',
+     *     2 => array('foo' => 'baz'),
+     * );
+     * </code>
+     *
+     * @param  mixed $value
+     * @param  bool  $allowEmpty    Is an empty list a valid list?
+     * @return bool
+     */
+    public static function isList($value, $allowEmpty = false)
+    {
+        if (!is_array($value)) {
+            return false;
+        }
+
+        if (!$value) {
+            return $allowEmpty;
+        }
+
+        return (array_values($value) === $value);
+    }
+
+    /**
+     * Test whether an array is a hash table.
+     *
+     * An array is a hash table if:
+     *
+     * 1. Contains one or more non-integer keys, or
+     * 2. Integer keys are non-continuous or misaligned (not starting with 0)
+     *
+     * For example:
+     * <code>
+     * $hash = array(
+     *     'foo' => 15,
+     *     'bar' => false,
+     * );
+     * $hash = array(
+     *     1995  => 'Birth of PHP',
+     *     2009  => 'PHP 5.3.0',
+     *     2012  => 'PHP 5.4.0',
+     * );
+     * $hash = array(
+     *     'formElement,
+     *     'options' => array( 'debug' => true ),
+     * );
+     * </code>
+     *
+     * @param  mixed $value
+     * @param  bool  $allowEmpty    Is an empty array() a valid hash table?
+     * @return bool
+     */
+    public static function isHashTable($value, $allowEmpty = false)
+    {
+        if (!is_array($value)) {
+            return false;
+        }
+
+        if (!$value) {
+            return $allowEmpty;
+        }
+
+        return (array_values($value) !== $value);
+    }
+
+    /**
+     * Checks if a value exists in an array.
+     *
+     * Due to "foo" == 0 === TRUE with in_array when strict = false, an option
+     * has been added to prevent this. When $strict = 0/false, the most secure
+     * non-strict check is implemented. if $strict = -1, the default in_array
+     * non-strict behaviour is used.
+     *
+     * @param mixed $needle
+     * @param array $haystack
+     * @param int|bool $strict
+     * @return bool
+     */
+    public static function inArray($needle, array $haystack, $strict = false)
+    {
+        if (!$strict) {
+            if (is_int($needle) || is_float($needle)) {
+                $needle = (string) $needle;
+            }
+            if (is_string($needle)) {
+                foreach ($haystack as &$h) {
+                    if (is_int($h) || is_float($h)) {
+                        $h = (string) $h;
+                    }
+                }
+            }
+        }
+        return in_array($needle, $haystack, $strict);
+    }
+
+    /**
+     * Convert an iterator to an array.
+     *
+     * Converts an iterator to an array. The $recursive flag, on by default,
+     * hints whether or not you want to do so recursively.
+     *
+     * @param  array|Traversable  $iterator     The array or Traversable object to convert
+     * @param  bool               $recursive    Recursively check all nested structures
+     * @throws Exception\InvalidArgumentException if $iterator is not an array or a Traversable object
+     * @return array
+     */
+    public static function iteratorToArray($iterator, $recursive = true)
+    {
+        if (!is_array($iterator) && !$iterator instanceof Traversable) {
+            throw new Exception\InvalidArgumentException(__METHOD__ . ' expects an array or Traversable object');
+        }
+
+        if (!$recursive) {
+            if (is_array($iterator)) {
+                return $iterator;
+            }
+
+            return iterator_to_array($iterator);
+        }
+
+        if (method_exists($iterator, 'toArray')) {
+            return $iterator->toArray();
+        }
+
+        $array = [];
+        foreach ($iterator as $key => $value) {
+            if (is_scalar($value)) {
+                $array[$key] = $value;
+                continue;
+            }
+
+            if ($value instanceof Traversable) {
+                $array[$key] = static::iteratorToArray($value, $recursive);
+                continue;
+            }
+
+            if (is_array($value)) {
+                $array[$key] = static::iteratorToArray($value, $recursive);
+                continue;
+            }
+
+            $array[$key] = $value;
+        }
+
+        return $array;
+    }
+
+    /**
+     * Merge two arrays together.
+     *
+     * If an integer key exists in both arrays and preserveNumericKeys is false, the value
+     * from the second array will be appended to the first array. If both values are arrays, they
+     * are merged together, else the value of the second array overwrites the one of the first array.
+     *
+     * @param  array $a
+     * @param  array $b
+     * @param  bool  $preserveNumericKeys
+     * @return array
+     */
+    public static function merge(array $a, array $b, $preserveNumericKeys = false)
+    {
+        foreach ($b as $key => $value) {
+            if ($value instanceof MergeReplaceKeyInterface) {
+                $a[$key] = $value->getData();
+            } elseif (isset($a[$key]) || array_key_exists($key, $a)) {
+                if ($value instanceof MergeRemoveKey) {
+                    unset($a[$key]);
+                } elseif (!$preserveNumericKeys && is_int($key)) {
+                    $a[] = $value;
+                } elseif (is_array($value) && is_array($a[$key])) {
+                    $a[$key] = static::merge($a[$key], $value, $preserveNumericKeys);
+                } else {
+                    $a[$key] = $value;
+                }
+            } else {
+                if (!$value instanceof MergeRemoveKey) {
+                    $a[$key] = $value;
+                }
+            }
+        }
+
+        return $a;
+    }
+
+    /**
+     * Compatibility Method for array_filter on <5.6 systems
+     *
+     * @param array $data
+     * @param callable $callback
+     * @param null|int $flag
+     * @return array
+     */
+    public static function filter(array $data, $callback, $flag = null)
+    {
+        if (! is_callable($callback)) {
+            throw new Exception\InvalidArgumentException(sprintf(
+                'Second parameter of %s must be callable',
+                __METHOD__
+            ));
+        }
+
+        if (version_compare(PHP_VERSION, '5.6.0') >= 0) {
+            return array_filter($data, $callback, $flag);
+        }
+
+        $output = [];
+        foreach ($data as $key => $value) {
+            $params = [$value];
+
+            if ($flag === static::ARRAY_FILTER_USE_BOTH) {
+                $params[] = $key;
+            }
+
+            if ($flag === static::ARRAY_FILTER_USE_KEY) {
+                $params = [$key];
+            }
+
+            $response = call_user_func_array($callback, $params);
+            if ($response) {
+                $output[$key] = $value;
+            }
+        }
+
+        return $output;
+    }
+}