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56 lines
1.2 KiB
PHP
56 lines
1.2 KiB
PHP
--TEST--
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Test array_filter() function : basic functionality
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--FILE--
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<?php
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/* Prototype : array array_filter(array $input [, callback $callback])
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* Description: Filters elements from the array via the callback.
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* Source code: ext/standard/array.c
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*/
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echo "*** Testing array_filter() : basic functionality ***\n";
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// Initialise all required variables
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$input = array(1, 2, 3, 0, -1); // 0 will be considered as FALSE and removed in default callback
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/* Callback function
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* Prototype : bool even(array $input)
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* Parameters : $input - input array each element of which will be checked in function even()
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* Return type : boolean - true if element is even and false otherwise
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* Description : This function takes array as parameter and checks for each element of array.
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* It returns true if the element is even number else returns false
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*/
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function even($input)
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{
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return ($input % 2 == 0);
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}
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// with all possible arguments
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var_dump( array_filter($input,"even") );
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// with default arguments
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var_dump( array_filter($input) );
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echo "Done"
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?>
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--EXPECTF--
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*** Testing array_filter() : basic functionality ***
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array(2) {
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[1]=>
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int(2)
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[3]=>
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int(0)
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}
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array(4) {
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[0]=>
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int(1)
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[1]=>
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int(2)
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[2]=>
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int(3)
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[4]=>
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int(-1)
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}
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Done
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