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|
--TEST--
Test strtok() function : usage variations - with embedded nulls in the strings
--FILE--
<?php
/* Prototype : string strtok ( str $str, str $token )
* Description: splits a string (str) into smaller strings (tokens), with each token being delimited by any character from token
* Source code: ext/standard/string.c
*/
/*
* Testing strtok() : with embedded nulls in the strings
*/
echo "*** Testing strtok() : with embedded nulls in the strings ***\n";
// defining varous strings with embedded nulls
$strings_with_nulls = array(
"\0",
'\0',
"hello\0world",
"\0hel\0lo",
"hello\0",
"\0\0hello\tworld\0\0",
"\\0he\0llo\\0",
'hello\0\0'
);
// loop through each element of the array and check the working of strtok()
// when supplied with different string values
$counter = 1;
foreach( $strings_with_nulls as $string ) {
echo "\n--- Iteration $counter ---\n";
var_dump( strtok($string, "\0") );
for($count = 1; $count <= 5; $count++) {
var_dump( strtok("\0") );
}
$counter++;
}
echo "Done\n";
?>
--EXPECT--
*** Testing strtok() : with embedded nulls in the strings ***
--- Iteration 1 ---
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 2 ---
string(2) "\0"
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 3 ---
string(5) "hello"
string(5) "world"
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 4 ---
string(3) "hel"
string(2) "lo"
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 5 ---
string(5) "hello"
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 6 ---
string(11) "hello world"
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 7 ---
string(4) "\0he"
string(5) "llo\0"
bool(false)
bool(false)
bool(false)
bool(false)
--- Iteration 8 ---
string(9) "hello\0\0"
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
Done
|
