Validating U.S. Currency : Regular Expressions « String « PHP

1. PHP
2. String
3. Regular Expressions

Validating U.S. Currency

 
<?php 
$regex = "/^\\$?(\d{1,3}(,\d{3})*|\d+)\.\d\d$/"; 

$values = array( 
    "1,123.00", 
    "1123.00" 
); 


foreach ($values as $value) { 
    if (preg_match($regex, $value)) { 
        echo "'" . $value . "' is a valid number.\n"; 
    } else { 
        echo "'" . $value . "' is NOT a valid number.\n"; 
    } 
} 
?>
  
  

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