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<?php |
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namespace N98\Util; |
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class ArrayFunctions |
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{ |
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/** |
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* Merge two arrays together. |
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* |
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* If an integer key exists in both arrays, the value from the second array |
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* will be appended the the first array. If both values are arrays, they |
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* are merged together, else the value of the second array overwrites the |
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* one of the first array. |
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* |
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* @see http://packages.zendframework.com/docs/latest/manual/en/index.html#zend-stdlib |
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* @param array $a |
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* @param array $b |
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* @return array |
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*/ |
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public static function mergeArrays(array $a, array $b) |
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{ |
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foreach ($b as $key => $value) { |
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if (array_key_exists($key, $a)) { |
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if (is_int($key)) { |
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$a[] = $value; |
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} elseif (is_array($value) && is_array($a[$key])) { |
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$a[$key] = self::mergeArrays($a[$key], $value); |
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} else { |
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$a[$key] = $value; |
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} |
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} else { |
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$a[$key] = $value; |
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} |
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} |
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return $a; |
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} |
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/** |
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* @param array $matrix |
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* @param string $key key to filter |
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* @param mixed $value to compare against (strict comparison) |
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* @return array |
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*/ |
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public static function matrixFilterByValue(array $matrix, $key, $value) |
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{ |
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return self::matrixCallbackFilter($matrix, function (array $item) use ($key, $value) { |
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return $item[$key] !== $value; |
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}); |
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} |
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/** |
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* @param array $matrix |
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* @param string $key to filter |
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* @param string $value to compare against |
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* @return array |
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*/ |
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public static function matrixFilterStartswith(array $matrix, $key, $value) |
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{ |
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return self::matrixCallbackFilter($matrix, function (array $item) use ($key, $value) { |
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return strncmp($item[$key], $value, strlen($value)); |
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}); |
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} |
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/** |
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* @param array $matrix |
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* @param callable $callback that when return true on the row will unset it |
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* @return array |
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*/ |
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private static function matrixCallbackFilter(array $matrix, $callback) |
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{ |
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foreach ($matrix as $k => $item) { |
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if ($callback($item)) { |
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unset($matrix[$k]); |
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} |
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} |
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return $matrix; |
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} |
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} |
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netz98 /
n98-magerun
