Lines Matching refs:callback
2 Test array_filter() function : usage variations - built-in functions as 'callback' argument
5 /* Prototype : array array_filter(array $input [, callback $callback])
6 * Description: Filters elements from the array via the callback.
11 * Passing built-in functions and different language constructs as 'callback' argument
14 echo "*** Testing array_filter() : usage variations - built-in functions as 'callback' argument ***…
18 // using built-in function 'is_int' as 'callback'
21 // using built-in function 'chr' as 'callback'
24 // using language construct 'echo' as 'callback'
27 // using language construct 'exit' as 'callback'
33 *** Testing array_filter() : usage variations - built-in functions as 'callback' argument ***
69 Warning: array_filter() expects parameter 2 to be a valid callback, function 'echo' not found or in…
72 Warning: array_filter() expects parameter 2 to be a valid callback, function 'exit' not found or in…