substr_count() - string

substr_count() returns the number of times the
   needle substring occurs in the
   haystack string. Please note that
   needle is case sensitive.

Parameters : 
 haystack - The string to search in 
 needle - The substring to search for 
 offset - The offset where to start counting 
 length - The maximum length after the specified offset to search for the
       substring. It outputs a warning if the offset plus the length is
       greater than the haystack length. 

Syntax

int substr_count
    ( string $haystack
   , string $needle
   [, int $offset = 0
   [, int $length
  ]] )

Example

<?php$text = 'This is a test';echo strlen($text); // 14echo substr_count($text, 'is'); // 2// the string is reduced to 's is a test', so it prints 1echo substr_count($text, 'is', 3);// the text is reduced to 's i', so it prints 0echo substr_count($text, 'is', 3, 3);// generates a warning because 5+10 > 14echo substr_count($text, 'is', 5, 10);// prints only 1, because it doesn't count overlapped substrings$text2 = 'gcdgcdgcd';echo substr_count($text2, 'gcdgcd');?>

Output / Return Value

Limitations

Alternatives / See Also

Reference