版权声明:原创文章,转载声明出处 https://blog.csdn.net/weixin_43183475/article/details/82631079
if(!function_exists('array_column')){
function array_column($ary, $columnKey, $indexKey = null){
$columnKeyIsNumber = (is_numeric($columnKey)) ? true : false;
$indexKeyIsNull = (is_null($indexKey)) ? true : false;
$indexKeyIsNumber = (is_numeric($indexKey)) ? true : false;
$result = array();
foreach ((array)$ary as $key => $row){
if($columnKeyIsNumber){
$tmp = array_slice($row, $columnKey, 1);
$tmp = (is_array($tmp) && !empty($tmp)) ? current($tmp) : null;
} else {
$tmp = isset($row[$columnKey]) ? $row[$columnKey] : null;
}
if(!$indexKeyIsNull) {
if ($indexKeyIsNumber) {
$key = array_slice($row, $indexKey, 1);
$key = (is_array($key) && ! empty($key)) ? current($key) : null;
$key = is_null($key) ? 0 : $key;
} else {
$key = isset($row[$indexKey]) ? $row[$indexKey] : 0;
}
}
$result[$key] = $tmp;
}
return $result;
}
}