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152 lines
2.5 KiB
PHP
152 lines
2.5 KiB
PHP
--TEST--
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Test array_filter() function : usage variations - Callback function with different return values
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--FILE--
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<?php
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/* Prototype : array array_filter(array $input [, callback $callback])
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* Description: Filters elements from the array via the callback.
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* Source code: ext/standard/array.c
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*/
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/*
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* callback functions are expected to return bool value for array_filter()
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* here testing callback functions for return values other than bool
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*/
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echo "*** Testing array_filter() : usage variations - callback function with different return values***\n";
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$input = array(0, 1, -1, 10, 100, 1000, 'Hello', null, true);
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// callback functions
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// int as return value
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function callback1($input)
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{
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return 5;
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}
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echo "callback function with int return value\n";
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var_dump( array_filter($input, 'callback1') );
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// float as return value
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function callback2($input)
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{
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return 3.4;
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}
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echo "callback function with float return value\n";
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var_dump( array_filter($input, 'callback2') );
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// string as return value
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function callback3($input)
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{
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return 'value';
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}
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echo "callback function with string return value\n";
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var_dump( array_filter($input, 'callback3') );
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// null as return value
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function callback4($input)
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{
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return null;
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}
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echo "callback function with null return value\n";
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var_dump( array_filter($input, 'callback4') );
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// array as return value
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function callback5($input)
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{
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return array(8);
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}
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echo "callback function with array as return value\n";
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var_dump( array_filter($input, 'callback5') );
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echo "Done"
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?>
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--EXPECTF--
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*** Testing array_filter() : usage variations - callback function with different return values***
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callback function with int return value
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array(9) {
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[0]=>
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int(0)
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[1]=>
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int(1)
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[2]=>
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int(-1)
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[3]=>
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int(10)
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[4]=>
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int(100)
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[5]=>
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int(1000)
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[6]=>
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string(5) "Hello"
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[7]=>
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NULL
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[8]=>
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bool(true)
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}
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callback function with float return value
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array(9) {
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[0]=>
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int(0)
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[1]=>
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int(1)
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[2]=>
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int(-1)
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[3]=>
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int(10)
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[4]=>
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int(100)
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[5]=>
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int(1000)
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[6]=>
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string(5) "Hello"
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[7]=>
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NULL
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[8]=>
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bool(true)
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}
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callback function with string return value
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array(9) {
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[0]=>
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int(0)
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[1]=>
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int(1)
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[2]=>
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int(-1)
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[3]=>
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int(10)
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[4]=>
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int(100)
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[5]=>
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int(1000)
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[6]=>
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string(5) "Hello"
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[7]=>
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NULL
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[8]=>
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bool(true)
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}
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callback function with null return value
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array(0) {
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}
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callback function with array as return value
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array(9) {
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[0]=>
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int(0)
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[1]=>
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int(1)
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[2]=>
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int(-1)
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[3]=>
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int(10)
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[4]=>
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int(100)
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[5]=>
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int(1000)
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[6]=>
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string(5) "Hello"
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[7]=>
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NULL
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[8]=>
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bool(true)
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}
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Done
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