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--TEST--
Test explode() function : usage variations - test values for $delimiter argument
--FILE--
<?php
/* Prototype : array explode ( string $delimiter , string $string [, int $limit ] )
* Description: Split a string by string.
* Source code: ext/standard/string.c
*/
echo "*** Testing explode() function: with unexpected inputs for 'delimiter' 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 $delimiter
$delimiters = array (
// integer values
0,
1,
255,
256,
PHP_INT_MAX,
-PHP_INT_MAX,
// float values
10.5,
-20.5,
10.1234567e10,
// array values
array(),
array(0),
array(1, 2),
// boolean values
true,
false,
TRUE,
FALSE,
// null values
NULL,
null,
// objects
new sample(),
// resource
$file_handle,
// undefined variable
@$undefined_var,
// unset variable
@$unset_var
);
// loop through with each element of the $delimiters array to test explode() function
$count = 1;
$string = "piece1 piece2 piece3 piece4 piece5 piece6";
$limit = 5;
foreach($delimiters as $delimiter) {
echo "-- Iteration $count --\n";
var_dump( explode($delimiter, $string, $limit) );
$count ++;
}
fclose($file_handle); //closing the file handle
?>
===Done===
--EXPECTF--
*** Testing explode() function: with unexpected inputs for 'delimiter' argument ***
-- Iteration 1 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 2 --
array(2) {
[0]=>
string(5) "piece"
[1]=>
string(35) " piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 3 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 4 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 5 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 6 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 7 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 8 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 9 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 10 --
Warning: explode() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 11 --
Warning: explode() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 12 --
Warning: explode() expects parameter 1 to be string, array given in %s on line %d
NULL
-- Iteration 13 --
array(2) {
[0]=>
string(5) "piece"
[1]=>
string(35) " piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 14 --
Warning: explode(): Empty delimiter in %s on line %d
bool(false)
-- Iteration 15 --
array(2) {
[0]=>
string(5) "piece"
[1]=>
string(35) " piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 16 --
Warning: explode(): Empty delimiter in %s on line %d
bool(false)
-- Iteration 17 --
Warning: explode(): Empty delimiter in %s on line %d
bool(false)
-- Iteration 18 --
Warning: explode(): Empty delimiter in %s on line %d
bool(false)
-- Iteration 19 --
array(1) {
[0]=>
string(41) "piece1 piece2 piece3 piece4 piece5 piece6"
}
-- Iteration 20 --
Warning: explode() expects parameter 1 to be string, resource given in %s on line %d
NULL
-- Iteration 21 --
Warning: explode(): Empty delimiter in %s on line %d
bool(false)
-- Iteration 22 --
Warning: explode(): Empty delimiter in %s on line %d
bool(false)
===Done===