您可以使用此功能：

function str_lreplace($search, $replace, $subject)

{

    $pos = strrpos($subject, $search);

    if($pos !== false)

    {

        $subject = substr_replace($subject, $replace, $pos, strlen($search));

    }

    return $subject;

}

另一種1-liner但沒(méi)有預(yù)浸料：

$subject = 'bourbon, scotch, beer';

$search = ',';

$replace = ', and';

echo strrev(implode(strrev($replace), explode(strrev($search), strrev($subject), 2))); //output: bourbon, scotch, and beer

$string = 'this is my world, not my world';

$find = 'world';

$replace = 'farm';

$result = preg_replace(strrev("/$find/"),strrev($replace),strrev($string),1);

echo strrev($result); //output: this is my world, not my farm