Parsing a string with strtok()
PHP/MySQL
Last Updated: 2007-02-25 13:17:11
Last Updated: 2007-02-25 13:17:11
STEP 1: Tokenizing
You can parse a string with strtok() which is a function that requires two arguments; the string to be parsed and the delimiters by which to split the string.
strtok stands for "string tokenizing". You can tokenize a string with as many delimiters as you would like. Unlike explode() where the delimiter you set is combined to make one delimiter, strtok "tokenizes" upon the first successful token found. strtok() returns false when reaching the end of the string.
In this example we will use strtok() to parse out the query string of a URL.
<?php
$URL = "http://www.joelucky39.com/index.php?page=1&action=post&pass=0";
$tokens = "?&";
$stringQuery = strtok($URL, $tokens);
while (is_string($stringQuery)) {
if ($stringQuery) {
print "$stringQuery<br>";
}
$stringQuery = strtok($tokens);
}
?>
This would print out:
http://www.joelucky39.com/index.php
page=1
action=post
pass=0
strtok stands for "string tokenizing". You can tokenize a string with as many delimiters as you would like. Unlike explode() where the delimiter you set is combined to make one delimiter, strtok "tokenizes" upon the first successful token found. strtok() returns false when reaching the end of the string.
In this example we will use strtok() to parse out the query string of a URL.
<?php
$URL = "http://www.joelucky39.com/index.php?page=1&action=post&pass=0";
$tokens = "?&";
$stringQuery = strtok($URL, $tokens);
while (is_string($stringQuery)) {
if ($stringQuery) {
print "$stringQuery<br>";
}
$stringQuery = strtok($tokens);
}
?>
This would print out:
http://www.joelucky39.com/index.php
page=1
action=post
pass=0
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