119 lines
4.1 KiB
PHP
119 lines
4.1 KiB
PHP
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<?php
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/**
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* Copied from https://github.com/ramsey/array_column
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*
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* @copyright Copyright (c) Ben Ramsey (https://benramsey.com)
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* @license https://opensource.org/licenses/MIT MIT
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*
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* @phpcs:disable -- Code from external source. Left as-is for easier compare.
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*/
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if (!function_exists('array_column')) {
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/**
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* Returns the values from a single column of the input array, identified by
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* the $columnKey.
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*
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* Optionally, you may provide an $indexKey to index the values in the returned
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* array by the values from the $indexKey column in the input array.
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*
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* @param array $input A multi-dimensional array (record set) from which to pull
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* a column of values.
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* @param mixed $columnKey The column of values to return. This value may be the
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* integer key of the column you wish to retrieve, or it
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* may be the string key name for an associative array.
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* @param mixed $indexKey (Optional.) The column to use as the index/keys for
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* the returned array. This value may be the integer key
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* of the column, or it may be the string key name.
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* @return array
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*/
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function array_column($input = null, $columnKey = null, $indexKey = null)
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{
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// Using func_get_args() in order to check for proper number of
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// parameters and trigger errors exactly as the built-in array_column()
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// does in PHP 5.5.
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$argc = func_num_args();
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$params = func_get_args();
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if ($argc < 2) {
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trigger_error("array_column() expects at least 2 parameters, {$argc} given", E_USER_WARNING);
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return null;
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}
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if (!is_array($params[0])) {
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trigger_error(
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'array_column() expects parameter 1 to be array, ' . gettype($params[0]) . ' given',
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E_USER_WARNING
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);
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return null;
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}
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if (!is_int($params[1])
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&& !is_float($params[1])
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&& !is_string($params[1])
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&& $params[1] !== null
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&& !(is_object($params[1]) && method_exists($params[1], '__toString'))
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) {
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trigger_error('array_column(): The column key should be either a string or an integer', E_USER_WARNING);
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return false;
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}
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if (isset($params[2])
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&& !is_int($params[2])
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&& !is_float($params[2])
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&& !is_string($params[2])
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&& !(is_object($params[2]) && method_exists($params[2], '__toString'))
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) {
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trigger_error('array_column(): The index key should be either a string or an integer', E_USER_WARNING);
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return false;
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}
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$paramsInput = $params[0];
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$paramsColumnKey = ($params[1] !== null) ? (string) $params[1] : null;
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$paramsIndexKey = null;
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if (isset($params[2])) {
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if (is_float($params[2]) || is_int($params[2])) {
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$paramsIndexKey = (int) $params[2];
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} else {
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$paramsIndexKey = (string) $params[2];
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}
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}
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$resultArray = [];
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foreach ($paramsInput as $row) {
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$key = $value = null;
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$keySet = $valueSet = false;
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if ($paramsIndexKey !== null && array_key_exists($paramsIndexKey, $row)) {
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$keySet = true;
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$key = (string) $row[$paramsIndexKey];
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}
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if ($paramsColumnKey === null) {
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$valueSet = true;
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$value = $row;
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} elseif (is_array($row) && array_key_exists($paramsColumnKey, $row)) {
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$valueSet = true;
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$value = $row[$paramsColumnKey];
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}
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if ($valueSet) {
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if ($keySet) {
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$resultArray[$key] = $value;
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} else {
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$resultArray[] = $value;
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}
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}
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}
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return $resultArray;
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}
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}
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// phpcs:enable
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