问题
<?php
class Encryption {
var $skey = "1234561234561234"; // you can change it
public function safe_b64encode($string) {
$data = base64_encode($string);
$data = str_replace(array('+','/','='),array('-','_',''),$data);
return $data;
}
public function safe_b64decode($string) {
$data = str_replace(array('-','_'),array('+','/'),$string);
$mod4 = strlen($data) % 4;
if ($mod4) {
$data .= substr('====', $mod4);
}
return base64_decode($data);
}
public function encode($value){
if(!$value){return false;}
$text = $value;
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->skey, $text, MCRYPT_MODE_ECB, $iv);
return trim($this->safe_b64encode($crypttext));
}
public function decode($value){
if(!$value){return false;}
$crypttext = $this->safe_b64decode($value);
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $this->skey, $crypttext, MCRYPT_MODE_ECB, $iv);
return trim($decrypttext);
}
}
It's my encryption.php
file. I tried to solve this error and research lots of time but i could not find proper answer. I am newer in PHP.
Error :
A PHP Error was encountered
Severity: 8192
Message: Function mcrypt_create_iv() is deprecated
Filename: libraries/Encryption.php
Line Number: 27
回答1:
The manual http://php.net/manual/en/function.mcrypt-create-iv.php states:
Warning
This function was DEPRECATED in PHP 7.1.0, and REMOVED in PHP 7.2.0.
Alternatives to this function include:
- random_bytes()
There is an alternate solution if you don't want to use random_bytes(), and it is shown here:
- PHP 7 - mcrypt deprecated, need alternative
来源:https://stackoverflow.com/questions/47970207/function-mcrypt-create-iv-is-deprecated-within-codeigniter-framework