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--TEST--
Test sscanf() function : usage variations - unexpected inputs for '$str' argument
--FILE--
<?php
/* Prototype : mixed sscanf ( string $str , string $format [, mixed &$... ] )
* Description: Parses input from a string according to a format
* Source code: ext/standard/string.c
*/
echo "*** Testing sscanf() function: with unexpected inputs for 'str' 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 values
/*16*/ NULL,
null,
// objects
/*18*/ new sample(),
// resource
/*19*/ $file_handle,
// undefined variable
/*20*/ @$undefined_var,
// unset variable
/*21*/ @$unset_var
);
//defining '$pad_length' argument
$format = "%s";
// loop through with each element of the $inputs array to test sscanf() function
$count = 1;
foreach($inputs as $input) {
echo "-- Iteration $count --\n";
var_dump( sscanf($input, $format) );
$count ++;
}
fclose($file_handle); //closing the file handle
?>
===DONE===
--EXPECTF--
*** Testing sscanf() function: with unexpected inputs for 'str' argument ***
-- Iteration 1 --
array(1) {
[0]=>
string(1) "0"
}
-- Iteration 2 --
array(1) {
[0]=>
string(1) "1"
}
-- Iteration 3 --
array(1) {
[0]=>
string(2) "-2"
}
-- Iteration 4 --
array(1) {
[0]=>
string(10) "2147483647"
}
-- Iteration 5 --
array(1) {
[0]=>
string(11) "-2147483648"
}
-- Iteration 6 --
array(1) {
[0]=>
string(4) "10.5"
}
-- Iteration 7 --
array(1) {
[0]=>
string(5) "-20.5"
}
-- Iteration 8 --
array(1) {
[0]=>
string(12) "101234567000"
}
-- Iteration 9 --
Warning: sscanf() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 10 --
Warning: sscanf() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 11 --
Warning: sscanf() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 12 --
array(1) {
[0]=>
string(1) "1"
}
-- Iteration 13 --
NULL
-- Iteration 14 --
array(1) {
[0]=>
string(1) "1"
}
-- Iteration 15 --
NULL
-- Iteration 16 --
NULL
-- Iteration 17 --
NULL
-- Iteration 18 --
array(1) {
[0]=>
string(6) "sample"
}
-- Iteration 19 --
Warning: sscanf() expects parameter 1 to be string, resource given in %s on line %d
NULL
-- Iteration 20 --
NULL
-- Iteration 21 --
NULL
===DONE===