|
Home
iRate! IceMelon IM Tutorials Headlines CoolSites PHP Functions |
Most Referenced Functions » google_pagerank() » preg_replace() » imagecreatefrompng() » site_pageranks() » imagepng() » imagedestroy() » imagestring() » imagecolorallocate() » htmlentities() » fopen() » preg_match() » header() » getimagesize() » htmlspecialchars() » ob_start() » session_start() » strstr() » ob_flush() » preg_match_all() » strpos() » flush() » setcookie() » str_replace() » array2vars() » nl2br() » preg_split() » ereg() » urlencode() » ereg_replace() » readgzfile() Become a sponsor for $15/month. Link is sitewide - PR5 homepage, 20+ PR4 pages, 90+ PR3 pages. Email dave[AT]icemelon[D0T]c0m. |
PHP Functions
Function: count_chars (PHP 4, PHP 5) count_chars -- Return information about characters used in a stringDescriptionmixed count_chars ( string string [, int mode] )Counts the number of occurrences of every byte-value (0..255) in string and returns it in various ways. The optional parameter mode defaults to 0. Depending on mode count_chars() returns one of the following:
0 - an array with the byte-value as key and the frequency of every byte as value. 1 - same as 0 but only byte-values with a frequency greater than zero are listed. 2 - same as 0 but only byte-values with a frequency equal to zero are listed. 3 - a string containing all used byte-values is returned. 4 - a string containing all not used byte-values is returned.
Example 1. count_chars() example <?php $data = "Two Ts and one F."; foreach (count_chars($data, 1) as $i => $val) { echo "There were $val instance(s) of \"" , chr($i) , "\" in the string.\n"; } ?> The above example will output: There were 4 instance(s) of " " in the string. There were 1 instance(s) of "." in the string. There were 1 instance(s) of "F" in the string. There were 2 instance(s) of "T" in the string. There were 1 instance(s) of "a" in the string. There were 1 instance(s) of "d" in the string. There were 1 instance(s) of "e" in the string. There were 2 instance(s) of "n" in the string. There were 2 instance(s) of "o" in the string. There were 1 instance(s) of "s" in the string. There were 1 instance(s) of "w" in the string. Related Function(s) |