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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Get Information About Characters Used in a String in PHP</title> </head> <body> <pre> <?php // Sample string $str = "Hello World!"; // Counting unique characters in the string $arr = count_chars($str, 1); // Iterating through returned array foreach($arr as $i => $val){ echo "The character \"" . chr($i) . "\" occurs $val times the string.\n"; } ?> </pre> </body> </html>
