Remove all elements in array matching a specific string using PHP

Question

I\'m hoping this is really simple, and I\'m missing something obvious!

I\'m trying to remove all elements in an array that match a certain string. It\'s a basic 1D a

Answer 1

You need to use a callback.

array_filter($array, function($e){
   return stripos("Remove", $e)===false
});

To understand above code properly see this commented code.

array_filter($array, function($e){
    if(stripos("Remove", $e)===false) // "Remove" is not found
        return true; // true to keep it.
    else
        return false; // false to filter it. 
});

Answer 2

You can just use array_diff here, if it's one fixed string:

$array = array_diff($array, array("Remove"));

For more complex matching, I'd use preg_grep obviously:

$array = preg_grep("/^Remove$/i", $array, PREG_GREP_INVERT);
// matches upper and lowercase for example