Question

How to reverse a word in a string with PHP

Answer 1

function reverseWord(&$str, $word) {
    $pos = strpos($str, $word);
    
    if ($pos !== false) {
        $reversed = strrev($word);
        $str = substr($str, 0, $pos) . $reversed . substr($str, $pos + strlen($word));
    }
}

$str = "C++ C Java Python PHP C#";
$word = "Java";

reverseWord($str, $word);

echo $str . PHP_EOL;



/*
run:

C++ C avaJ Python PHP C#

*/

 

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