<?php

$data = "1234    ";

$keyHex = "AABBCCDDEEFF00110011223344556677AABBCCDDEEFF0011";
$keyStr = Hex2String($keyHex);

$encData = openssl_encrypt($data, "des-ede3", $keyStr, OPENSSL_ZERO_PADDING);


echo String2Hex(base64_decode($encData));


function Hex2String($hex){
    $string='';
    for ($i=0; $i < strlen($hex)-1; $i+=2){
        $string .= chr(hexdec($hex[$i].$hex[$i+1]));
    }
    return $string;
}
function String2Hex($string){
    $hex='';
    for ($i=0; $i < strlen($string); $i++){
        $hex .= dechex(ord($string[$i]));
    }
    return $hex;
}