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126 lines
2.3 KiB
PHP
126 lines
2.3 KiB
PHP
--TEST--
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Test array_map() function : usage variations - null value for 'callback' argument
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--FILE--
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<?php
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/* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] )
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* Description: Applies the callback to the elements of the given arrays
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* Source code: ext/standard/array.c
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*/
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/*
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* Test array_map() by passing null values for $callback argument and testing whether shortest
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* array will be extended with empty elements
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*/
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echo "*** Testing array_map() : null value for 'callback' argument ***\n";
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// arrays to be passed as arguments
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$arr1 = array(1, 2);
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$arr2 = array("one", "two");
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$arr3 = array(1.1, 2.2);
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// get an unset variable
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$unset_var = 10;
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unset ($unset_var);
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/* calling array_map() with null callback */
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echo "-- with null --\n";
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var_dump( array_map(null, $arr1, $arr2, $arr3) );
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var_dump( array_map(NULL, $arr1, $arr2, $arr3) );
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echo "-- with unset variable --\n";
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var_dump( array_map(@$unset_var, $arr1, $arr2, $arr3) );
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echo "-- with undefined variable --\n";
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var_dump( array_map(@$undefined_var, $arr1) );
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echo "-- with empty string --\n";
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var_dump( array_map("", $arr1, $arr2) );
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echo "-- with empty array --\n";
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var_dump( array_map(array(), $arr1, $arr2) );
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echo "Done";
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?>
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--EXPECTF--
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*** Testing array_map() : null value for 'callback' argument ***
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-- with null --
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array(2) {
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[0]=>
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array(3) {
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[0]=>
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int(1)
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[1]=>
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string(3) "one"
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[2]=>
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float(1.1)
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}
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[1]=>
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array(3) {
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[0]=>
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int(2)
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[1]=>
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string(3) "two"
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[2]=>
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float(2.2)
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}
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}
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array(2) {
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[0]=>
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array(3) {
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[0]=>
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int(1)
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[1]=>
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string(3) "one"
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[2]=>
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float(1.1)
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}
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[1]=>
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array(3) {
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[0]=>
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int(2)
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[1]=>
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string(3) "two"
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[2]=>
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float(2.2)
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}
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}
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-- with unset variable --
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array(2) {
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[0]=>
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array(3) {
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[0]=>
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int(1)
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[1]=>
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string(3) "one"
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[2]=>
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float(1.1)
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}
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[1]=>
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array(3) {
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[0]=>
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int(2)
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[1]=>
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string(3) "two"
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[2]=>
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float(2.2)
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}
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}
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-- with undefined variable --
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array(2) {
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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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}
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-- with empty string --
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Warning: array_map() expects parameter 1 to be a valid callback, function '(null)' not found or invalid function name in %s on line %d
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NULL
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-- with empty array --
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Warning: array_map() expects parameter 1 to be a valid callback, array must have exactly two members in %s on line %d
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NULL
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Done
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