Yahoo! JAPAN

Here's a function I needed to collapse an array, in my case from a database query. It takes an array that contains key-value pairs and returns an array where ...

2023/7/15 -The array_keys() function returns an array containing all the keys or a subset of the keys of the array ... $array : The array from which the keys ...

2023/9/6 -The keys() method of Array instances returns a new array iterator object that contains the keys for each index in the array.

The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any ...

2010/6/16 -You can use unset : unset($array['key-here']);. Example: $array = array("key1" => "value1", "key2" => "value2"); print_r($array); ...

The array_keys() function returns an array containing the keys. Syntax. array_keys(array, value, strict). Parameter Values. Parameter, Description. array ...

2023/6/20 -The array_keys() is a built-in function in PHP and is used to return either all the keys of and array or the subset of the keys. Syntax: array ...

2022/11/29 -Use this function when you want to only unset a specific property in every object instance. Array keys by the same name will remain. /** * ...