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How to check if a string is alphanumeric in PHP



269 views
asked Aug 17, 2019 by avibootz
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1 Answer

0 votes 
$s = "php73";

if (ctype_alnum($s)) {
    echo "true<br />";
}
else {
    echo "false<br />"; 
}
      
 
  
    
/*
run:
         
true
  
*/

 



answered Aug 17, 2019 by avibootz

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How to check if strings in array are alphanumeric in PHP
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