12+ PHP Programs to Reverse a String

This post contains a total of 12+ Hand-Picked PHP Program examples to Reverse a String, with Source Code. All the Programs are made using PHP Programming language.

You can use the source code of these programs for educational use with credits to the original owner.

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1. By Michael Ngwerume

Made by Michael Ngwerume. Simple PHP Program to reverse a string. ( Source )

<?php
$s1="The art of Coding";
echo "s1 = $s1 <br>";
echo "Reverse string = ".strrev($s1); //will reverse the string
?>

2. By Praveen Badiger

Made by Praveen Badiger. Reverse a string in PHP without using strrev() built-in function. ( Source )

<?php
function reverseString($str){
    $stringLen = strlen($str)-1; //Get the string length and substract 1 from length as array index starts at 0.
    $reversedString = ""; //define the reversedString.
    for($i=$stringLen;$i>=0;$i--) //loop through all string characters in reverse order.
    {
        $reversedString .= $str[$i]; //append each string character to the result string.
    }
    
    return $reversedString; // return the reversed string.
}

echo strtoupper(reverseString("lived")); //call function by passing a string. just to make it look better embedding the result in strtoupper function.
?>

3. By Dushyant singh

Made by Dushyant singh. Enter your string in line ‘ $name=”lovely flower”; ‘. ( Source )

<?php
$name="lovely flower";
$reverse=strrev($name);//it create a reverse string
echo $reverse;
?>

4. By Indrajit Saha

Made by Indrajit Saha. ( Source )

<?php
echo strrev("hi!"); // outputs "!dlrow olleH"
?>

5. By Ravi

Made by V. Enter string in $a= “Hello World”; ( Source )

<?php
    $a= "Hello World";
    echo strrev($a);
?>

6. By An0ther

Made by An0ther. PHP Program to reverse a string using UTF-8. ( Source )

<?php

class An0ther{
    public function mb_strrev($text){
        $str = iconv('UTF-8','windows-1251',$text);
        $string = strrev($str);
        $str = iconv('windows-1251', 'UTF-8', $string);
        return $str;
    }
}

$text = "Привет, человек!";
$cl = new An0ther();
$str = $cl->mb_strrev($text);
echo $str;

?>

7. By Serhii Ivanenko

Made by Serhii Ivanenko. Reverse Unicode string. ( Source )

<?php
function reverseUnicodeString($str)
{
    $chars = preg_split('//u', $str, null, PREG_SPLIT_NO_EMPTY);
    $middle = count($chars) / 2;
    
    for ( $i = 0, $j = count($chars)-1; $i < $middle; $i++, $j-- ) {
        $temp = $chars[$i];
        $chars[$i] = $chars[$j];
        $chars[$j] = $temp;
    }
    
    return implode('', $chars);
}

$en = "Hello World";
echo reverseUnicodeString($en);
echo "<br>";

$ru = "Привет мир";
echo reverseUnicodeString($ru);
?>

8. By Allison Masemola

Made by Allison Masemola. Enter string in $rev = “Reverse this string”; ( Source )

<?php

   $rev = "Reverse this string";
   $rev = strrev($rev);
   echo $rev;
  
?>

9. By Roman Andreev

Made by Roman Andreev. ( Source )

<?php
   function string_reverse($string) {
       
       for($i = 0, $j = strlen($string) - 1; $i < $j; $i++, $j--) {
           
           $temp = $string[$i];
           $string[$i] = $string[$j];
           $string[$j] = $temp;
       }
       
       return $string;
   }
   
   $string = "Hello, world!";
   $reverse_string = string_reverse($string);
   echo $reverse_string;
?>

10. By Zulfikar Ahmad

Made by Zulfikar Ahmad. ( Source )

<?php

function reverse($str){
    $final = [];
    for($i = strlen($str) - 1; $i>=0 ; $i--){
        $final[] = $str[$i];
    }
    return join($final);
}
$text = "Solo Learn";
echo reverse($text);
    
?>

11. By Raghu M

Made by Raghu M. Small PHP Program to reverse a text string. ( Source )

<?php
  
  $str = 'HELLO';
   for($i=strlen($str)-1;$i>=0;$i--){
        echo $str[$i];
    }
?>

12. By Ahmed Khattab

Made by Ahmed Khattab. ( Source )

<?php
function FirstReverse($str) {
$word= '';    
$count=strlen($str);
$i=$count-1;
for($i; $i>=0 ; $i--)
    {
     $word .= $str[$i];
    }
return $word; 
}
echo FirstReverse('ahmed');

?>

13. By RAM KUMAR K

Made by RAM KUMAR K. Reverse string in php without using any string function. ( Source )

<?php
    $string="ramkumar"; $j = 0; while(!empty($string[$j])) { $j++; } for($i = ($j-1); $i >= 0; $i--) { echo $string[$i]; }
?>

14. By RomanHomya

Made by RomanHomya. ( Source )

<?php

    $string = 'Hello, world!';
    
    $reverse = strrev($string);
    
    echo $reverse;
    
?>