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  Classes of Juan Chaves  >  Invalid Characters  >  invalidcharacters.php  >  Download  
File: invalidcharacters.php
Role: Example script
Content type: text/plain
Description: Class Invalid Characters
Class: Invalid Characters
Check if a string has any invalid characters
Author: By
Last change:
Date: 4 years ago
Size: 874 bytes
 

Contents

Class file image Download
<?php


//class invalid characters


class InvalidCharacters
{

private 
$allowed;



public function 
reviews_allowed($view)

{

$charactersok "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";//Please insert here the characters that you consider as valid.
           
for ($i=0$i<strlen($view); $i++){
              if (
strpos($charactersoksubstr($view,$i,1))===false){
             
$this->allowed=false;return $this->allowed;
              }
           }
        
$this->allowed=true;return $this->allowed;
}

public function 
go()
    {
        if (
$this->allowed==true){return;}
        if (
$this->allowed==false){echo 'Invalid character(s)';exit();}
        
    }


}


//example of how to apply

$info=new InvalidCharacters();
$info->reviews_allowed("lkji˝");//Please insert here the characters to be checked.
$info->go();
echo 
"Ok";//The script continues here.
?>