How to Reverse String In PHP?

PHP · 03-Apr-2023

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Hi Dev,

This tutorial is focused on how to reverse strings in PHP. you'll learn how to use strrev() function in PHP. We will use how to reverse a string using PHP. if you have a question about how to use the strrev() function using PHP then I will give a simple example with a solution.

Now, let's see the article on how to reverse a string using PHP. it's a simple example of how to use the strrev() function using PHP. you can understand the concept of how to use the strrev() function in PHP. if you have a question about how to reverse a string in PHP then I will give a simple example with a solution.

Step 1:

<?php
    //declare a variable and assign a string 
    $str = "Hello";  

 
    //count length of string using PHP count function
    $count = strlen($str);  

 
    //Declare a variable in which you have stored a reverse string
    $revStr = '';
    for ($i=($count-1) ; $i >= 0 ; $i--)   
    {  
      // stored a string    
      $revStr .= $str[$i]; 
    }

 
    // print $revStr variable, it will return a reverse string  
    print_r($revStr);
?>

Step 2: Source Code – Reverse string without using string function In php

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Reverse string in PHP without using string function PHP </title>
</head>
<body>
<h4>Reverse string in PHP without using string function PHP </h4>

 
<?php
    //declare a variable and assign a string 
    $str = "Hello";  

 
    //count length of string using php count function
    $count = strlen($str);  

 
    //Declare a variable in which you have stored a reverse string
    $revStr = '';
    for ($i=($count-1) ; $i >= 0 ; $i--)   
    {  
      // stored a string    
      $revStr .= $str[$i]; 
    }

 
    // print $revStr variable, it will return the reverse string  
    print_r($revStr);
?>  

 
</body>
</html>

Step 3: Reserve a string using string function in PHP

<?php
    $str = "Hello World!";  
    echo "Reverse string of $string is " .strrev( $str );
?>

Step 4: Source Code – Reverse a string with using strrev() Function In PHP

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Reverse string in PHP with using strrev() string function PHP </title>
</head>
<body>
    <h4>Reverse string in PHP with using strrev() string function PHP </h4>

 
    <?php 
        $str = "Hello World!";  
        echo "Reverse string of $string is " .strrev( $str );  
    ?> 

 
</body>
</html>

I hope it could help you...