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--TEST--
Test is_callable() function : usage variations - on invalid function names
--INI--
precision=14
error_reporting = E_ALL & ~E_NOTICE | E_STRICT
--FILE--
<?php
/* Prototype: bool is_callable ( mixed $var [, bool $syntax_only [, string &$callable_name]] );
Description: Verify that the contents of a variable can be called as a function
In case of objects, $var = array($SomeObject, 'MethodName')
*/
/* Prototype: void check_iscallable( $functions );
Description: use iscallable() on given string to check for valid function name
returns true if valid function name, false otherwise
*/
function check_iscallable( $functions ) {
$counter = 1;
foreach($functions as $func) {
echo "-- Iteration $counter --\n";
var_dump( is_callable($func) ); //given only $var argument
var_dump( is_callable($func, TRUE) ); //given $var and $syntax argument
var_dump( is_callable($func, TRUE, $callable_name) );
echo $callable_name, "\n";
var_dump( is_callable($func, FALSE) ); //given $var and $syntax argument
var_dump( is_callable($func, FALSE, $callable_name) );
echo $callable_name, "\n";
$counter++;
}
}
echo "\n*** Testing is_callable() on invalid function names ***\n";
/* check on unset variables */
$unset_var = 10;
unset ($unset_var);
/* opening file resource type */
$file_handle = fopen (__FILE__, "r");
$variants = array (
NULL, // NULL as argument
0, // zero as argument
1234567890, // positive value
-100123456782, // negative value
-2.000000, // negative float value
.567, // positive float value
FALSE, // boolean value
array(1, 2, 3), // array
@$unset_var,
@$undef_var, //undefined variable
$file_handle
);
/* use check_iscallable() to check whether given variable is valid function name
* expected: false
*/
check_iscallable($variants);
/* closing resources used */
fclose($file_handle);
?>
===DONE===
--EXPECTF--
*** Testing is_callable() on invalid function names ***
-- Iteration 1 --
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
-- Iteration 2 --
bool(false)
bool(false)
bool(false)
0
bool(false)
bool(false)
0
-- Iteration 3 --
bool(false)
bool(false)
bool(false)
1234567890
bool(false)
bool(false)
1234567890
-- Iteration 4 --
bool(false)
bool(false)
bool(false)
-100123456782
bool(false)
bool(false)
-100123456782
-- Iteration 5 --
bool(false)
bool(false)
bool(false)
-2
bool(false)
bool(false)
-2
-- Iteration 6 --
bool(false)
bool(false)
bool(false)
0.567
bool(false)
bool(false)
0.567
-- Iteration 7 --
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
-- Iteration 8 --
bool(false)
bool(false)
bool(false)
Array
bool(false)
bool(false)
Array
-- Iteration 9 --
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
-- Iteration 10 --
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
-- Iteration 11 --
bool(false)
bool(false)
bool(false)
Resource id #%d
bool(false)
bool(false)
Resource id #%d
===DONE===