How to format Phone Numbers in PHP ?

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In this article, we will learn how to format phone numbers using PHP. When we need to store a phone number then we store the formatting phone number. Using PHP, we can easily format phone numbers.

Approach: In this article, we will format the phone number using the preg_match() method. We can use this method to format phone numbers. This function has special characteristics of finding specified patterns from string.

PHP code: The following is the complete code to format phone numbers using preg_match().

PHP

<?php 
  
// Create a formatting function 
function formatting($phone){ 
      
    // Pass phone number in preg_match function 
    if(preg_match( 
        '/^\+[0-9]([0-9]{3})([0-9]{3})([0-9]{4})$/',  
    $phone, $value)) { 
      
        // Store value in format variable 
        $format = $value[1] . '-' .  
            $value[2] . '-' . $value[3]; 
    } 
    else { 
         
        // If given number is invalid 
        echo "Invalid phone number <br>"; 
    } 
      
    // Print the given format 
    echo("$format" . "<br>"); 
} 
   
// Call the function 
formatting("+02025550170"); 
  
formatting("+01677942758"); 
?> 