PHP STRING FUNCTION WITH OUTPUT AND EXAMPLE <?php $var="my name is saddam hussain saifi "; print_r(explode("a",$var)); //output:Array ( [0] => my n [1] => me is s [2] => dd [3] => m huss [4] => in s [5] => ifi ) echo crypt($varws);//output:-$1$m5/.1//.$KRawtTgnzzScShDJN3aHa. echo crc32($var);//output:-1732983884 echo count_chars($var ,4);//output;-!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`bcgjklopqrtvwxz{|}~€ ‚ƒ„…†‡ˆ‰Š‹Œ Ž ’“”•–—˜™š›œ žŸ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ echo convert_uuencode($var);//output:-@;7D@;F%M92!I echo convert_uudecode($var);// output:d4P L@M echo convert_cyr_string($var,'m','a'); echo chunk_split($var,2,"(sam)");//output:-my(sam) n(sam)am(sam)e (sam)is(sam) s(sam)ad(sam)da(sam)m (sam)hu(sam)ss(sam)ai(sam)n (sam)s...