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--TEST--
Test array_map() function : usage variations - built-in function as callback
--FILE--
<?php
/*
* Test array_map() by passing buit-in function as callback function
*/
echo "*** Testing array_map() : built-in function ***\n";
$array1 = array(1, 2, 3);
$array2 = array(3, 4, 5);
echo "-- with built-in function 'pow' and two parameters --\n";
var_dump( array_map('pow', $array1, $array2));
echo "-- with built-in function 'pow' and one parameter --\n";
try {
var_dump( array_map('pow', $array1));
} catch (TypeError $e) {
echo $e->getMessage(), "\n";
}
echo "-- with language construct --\n";
try {
var_dump( array_map('echo', $array1));
} catch (TypeError $e) {
echo $e->getMessage(), "\n";
}
echo "Done";
?>
--EXPECT--
*** Testing array_map() : built-in function ***
-- with built-in function 'pow' and two parameters --
array(3) {
[0]=>
int(1)
[1]=>
int(16)
[2]=>
int(243)
}
-- with built-in function 'pow' and one parameter --
pow() expects exactly 2 arguments, 1 given
-- with language construct --
array_map(): Argument #1 ($callback) must be a valid callback, function "echo" not found or invalid function name
Done
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