PHP/String/strspn

strcspn demo

 
<?php
   $password = "a12345";
   if (strcspn($password, "1234567890") == 0) {
      print "Password cannot consist solely of numbers! ";
   }
?>

strcspn() function returns the length of the first segment in string1 containing characters not in string2.

 
Its syntax is: int strcspn (string str1, string str2)
<?
$password = "12345";
if (strcspn($password, "1234567890") == 0) :
     print "Password cannot consist solely of numbers!";
endif;
?>

strspn() function returns the length of the first segment in string1 containing characters also in string2.

 
Its syntax is: int strspn (string string1, string string2)
<?
$password = "12345";
if (strspn($password, "1234567890") != strlen($password)) :
     print "Password cannot consist solely of numbers!";
endif;
?>

strspn.php

 
<?php
   $password = "1111111";
   if (strspn($password, "1234567890") == strlen($password))
      echo "The password cannot consist solely of numbers!";
?>