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61 lines
1.4 KiB
PHP
61 lines
1.4 KiB
PHP
--TEST--
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Test array_map() function : usage variations - built-in function as callback
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--FILE--
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<?php
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/* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] )
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* Description: Applies the callback to the elements of the given arrays
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* Source code: ext/standard/array.c
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*/
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/*
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* Test array_map() by passing buit-in function as callback function
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*/
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echo "*** Testing array_map() : built-in function ***\n";
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$array1 = array(1, 2, 3);
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$array2 = array(3, 4, 5);
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echo "-- with built-in function 'pow' and two parameters --\n";
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var_dump( array_map('pow', $array1, $array2));
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echo "-- with built-in function 'pow' and one parameter --\n";
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var_dump( array_map('pow', $array1));
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echo "-- with language construct --\n";
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var_dump( array_map('echo', $array1));
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echo "Done";
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?>
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--EXPECTF--
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*** Testing array_map() : built-in function ***
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-- with built-in function 'pow' and two parameters --
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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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int(16)
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[2]=>
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int(243)
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}
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-- with built-in function 'pow' and one parameter --
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Warning: pow() expects exactly 2 parameters, 1 given in %s on line %d
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Warning: pow() expects exactly 2 parameters, 1 given in %s on line %d
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Warning: pow() expects exactly 2 parameters, 1 given in %s on line %d
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array(3) {
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[0]=>
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NULL
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[1]=>
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NULL
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[2]=>
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NULL
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}
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-- with language construct --
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Warning: array_map() expects parameter 1 to be a valid callback, function 'echo' not found or invalid function name in %s on line %d
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NULL
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Done
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