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--TEST--
Test print() function : usage variations
--FILE--
<?php
/* Prototype : int print ( string $arg )
* Description: Output a string
* Source code: n/a, print is a language construct not an extension function
* Test based on php.net manual example.
*/
echo "*** Testing print() function: with unexpected inputs for 'arg' argument ***\n";
//get an unset variable
$unset_var = 'string_val';
unset($unset_var);
//defining a class
class sample {
public function __toString() {
return "sample object";
}
}
//getting the resource
$file_handle = fopen(__FILE__, "r");
// array with different values for $input
$inputs = array (
// integer values
/*1*/ 0,
1,
-2,
2147483647,
-2147483648,
// float values
/*6*/ 10.5,
-20.5,
10.1234567e10,
// array values
/*9*/ array(),
array(0),
array(1, 2),
// boolean values
/*12*/ true,
false,
TRUE,
FALSE,
// null vlaues
/*16*/ NULL,
null,
// objects
/*18*/ new sample(),
// resource
/*19*/ $file_handle,
// undefined variable
/*20*/ @$undefined_var,
// unset variable
/*21*/ @$unset_var
);
// loop through with each element of the $inputs array to test print() function
$count = 1;
foreach($inputs as $input) {
echo "-- Iteration $count --\n";
$res = print($input);
echo "\n";
var_dump($res);
$count ++;
}
fclose($file_handle); //closing the file handle
?>
===DONE===
--EXPECTF--
*** Testing print() function: with unexpected inputs for 'arg' argument ***
-- Iteration 1 --
0
int(1)
-- Iteration 2 --
1
int(1)
-- Iteration 3 --
-2
int(1)
-- Iteration 4 --
2147483647
int(1)
-- Iteration 5 --
-2147483648
int(1)
-- Iteration 6 --
10.5
int(1)
-- Iteration 7 --
-20.5
int(1)
-- Iteration 8 --
101234567000
int(1)
-- Iteration 9 --
Notice: Array to string conversion in %sprint_variation1.php on line %d
Array
int(1)
-- Iteration 10 --
Notice: Array to string conversion in %sprint_variation1.php on line %d
Array
int(1)
-- Iteration 11 --
Notice: Array to string conversion in %sprint_variation1.php on line %d
Array
int(1)
-- Iteration 12 --
1
int(1)
-- Iteration 13 --
int(1)
-- Iteration 14 --
1
int(1)
-- Iteration 15 --
int(1)
-- Iteration 16 --
int(1)
-- Iteration 17 --
int(1)
-- Iteration 18 --
sample object
int(1)
-- Iteration 19 --
Resource id #%d
int(1)
-- Iteration 20 --
int(1)
-- Iteration 21 --
int(1)
===DONE===