Php strspn
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PHP function strspn
This function returns the length found in the string that contains only characters from the charlist.
Syntax strspn
- string: spring to search
- charlist: list of characters to search
- start: where to start
- length: defines the length of the string to be return.
strspn(string,charlist,start,length)
Example 1
- Return the match of the first segment of the string (i.e "ood", and ignore the rest of the string).
<?php
echo strspn("Good old day","od",1);
?>
Output
3
Example 2
- The same as the above example, however this time we allow only the return match with 2 in length.
<?php
echo strspn("Good old day","od",1,2);
?>
Output
2
Example 3
<?php
// start at 1, and return length is 5
echo strspn("Fooood", "o", 1, 5) . '<br/>';
// start is 1, and return length is 4
echo strspn("Fooood", "o", 1, 4) . '<br/>';
// start is 1, and return length is 3
echo strspn("Fooood", "o", 1, 3) . '<br/>';
// start is 1 and return length is 2
echo strspn("Fooood", "o", 1, 2) . '<br/>';
?>
Output
4 4 3 2
Example 4
<?php
echo strspn("Hello OLD day friends","Hel");
?>
Output
Match:Hell
4
