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<?php |
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namespace Bedd\Common; |
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use Bedd\Common\Traits\StaticClassTrait; |
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/** |
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* ArrayUtils |
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*/ |
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class ArrayUtils |
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{ |
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use StaticClassTrait; |
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/** |
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* Test whether an array contains one or more keys by defined $type |
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* |
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* @param string $input the Type: string|int |
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* @param array $input |
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* @param bool $only |
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* @param bool $allow_empty Should an empty $input return true |
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* @return bool |
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*/ |
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private static function hasKeysByType($type, array $input, $only = false, $allow_empty = false) |
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{ |
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if (!is_array($input)) { |
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return false; |
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} |
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if (!$input) { |
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return $allow_empty; |
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} |
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$count = count(array_filter(array_keys($input), 'is_'.strtolower($type))); |
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return $only ? $count === count($input) : $count > 0; |
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} |
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/** |
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* Test whether an array contains one or more string keys |
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* |
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* @param array $input |
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* @param bool $only |
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* @param bool $allow_empty Should an empty $input return true |
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* @return bool |
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*/ |
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public static function hasStringKeys(array $input, $only = false, $allow_empty = false) |
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{ |
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return self::hasKeysByType('string', $input, $only, $allow_empty); |
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} |
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/** |
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* Test whether an array contains one or more integer keys |
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* |
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* @param array $input |
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* @param bool $only |
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* @param bool $allow_empty Should an empty $input return true |
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* @return bool |
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*/ |
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public static function hasIntegerKeys(array $input, $only = false, $allow_empty = false) |
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{ |
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return self::hasKeysByType('int', $input, $only, $allow_empty); |
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} |
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/** |
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* Returns the value of the first found key-name |
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* |
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* @param array $input |
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* @param string[] $keys |
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* @param mixed $default |
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* @return mixed |
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*/ |
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public static function findValueByKeys(array $input, array $keys, $default = null) |
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{ |
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$return = $default; |
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foreach ($keys as $key) { |
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if (isset($input[$key])) { |
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$return = $input[$key]; |
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break; |
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} |
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} |
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return $return; |
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} |
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/** |
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* Flatten a multi-dimensional aray into a one dimensional array |
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* |
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* @param array $input |
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* @param string $preserve_keys |
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* @return array |
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*/ |
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public static function flatten(array $input, $preserve_keys = false) |
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{ |
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$return = []; |
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$awr_func = $preserve_keys ? |
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function ($v, $k) use (&$return) {$return[$k] = $v;} : |
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function ($v) use (&$return) {$return[] = $v;} |
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; |
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array_walk_recursive($input, $awr_func); |
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return $return; |
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} |
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/** |
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* Rename a key inside a dimensional array |
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* |
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* @param array $input |
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* @param string old_key |
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* @param string new_key |
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* @return array |
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*/ |
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public static function renameKey(array $input, $old_key, $new_key) |
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{ |
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$ret = $input; |
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if ($old_key !== $new_key && array_key_exists($old_key, $input)) { |
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$keys = array_keys($input); |
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$offset = array_search($old_key, $keys); |
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$keys[$offset] = $new_key; |
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$ret = array_combine($keys, $input); |
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} |
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return $ret; |
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} |
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} |
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Bedd /
common
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.