php7.3 AES-128-ECB decryption failed, but it can be decrypted successfully using online decryption tool, and it can be changed by changing the plaintext into numbers.

Question

//解密代码

function decrypt($str,$key){

$decrypt = openssl_decrypt($str, 'AES-128-ECB', $key,0); // 解密

return $decrypt;

}

//CryptotextUBcm652SRaSsc3sU8qDLbhWedridID6 cSmJM7DcKP85N6f/An9VWgDt4YIdZ25p

//Plain text{"shjh":"18482579354@","mima":"123456a"}

//Password 11111111111111111