在php7.2中mcrypt已经被废弃了。
用openssl代替它。
例如
public function desEncrypt($str,$key) { $iv = $key; $size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC ); $str = $this->_pkcs5_pad ( $str, $size ); return strtoupper( bin2hex( mcrypt_encrypt(MCRYPT_DES, $key, $str, MCRYPT_MODE_CBC, $iv ) ) ); } public function desDecrypt($str,$key) { $iv = $key; $strBin = $this->_hex2bin( strtolower( $str ) ); $str = mcrypt_decrypt( MCRYPT_DES, $key, $strBin, MCRYPT_MODE_CBC, $iv ); $str = $this->_pkcs5_unpad( $str ); return $str; } private function _pkcs5_pad($text,$block=8){ $pad = $block - (strlen($text) % $block); return $text . str_repeat(chr($pad), $pad); } private function _pkcs5_unpad($text) { $pad = ord($text{strlen($text)-1}); if ($pad > strlen($text)) return $text; if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return $text; return substr($text, 0, -1 * $pad); }
替换后：
//要改的加密 public function desEncrypt($str,$key) { // $b = openssl_get_cipher_methods(); // echo '<pre>'; // print_r($b); $iv = $key; // $size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC ); // var_dump($size);exit; // $str = $this->_pkcs5_pad ( $str, $size ); // return strtoupper( bin2hex( mcrypt_encrypt(MCRYPT_DES, $key, $str, MCRYPT_MODE_CBC, $iv ) ) ); $data = openssl_encrypt($str,"DES-CBC",$key,OPENSSL_RAW_DATA,$iv); $data = strtolower(bin2hex($data)); return $data; } //要改的解密 public function desDecrypt($str,$key) { $iv = $key; // $strBin = $this->_hex2bin( strtolower( $str ) ); // $str = mcrypt_decrypt( MCRYPT_DES, $key, $strBin, MCRYPT_MODE_CBC, $iv ); // $str = $this->_pkcs5_unpad( $str ); // return $str; return openssl_decrypt (hex2bin($str), 'DES-CBC', $key, OPENSSL_RAW_DATA,$iv); }
这些网上都有，在作者使用的过程中因为使用的是MCRYPT_DES，无法得知openssl对应的是那种加密方式，所以通过手册找到了openssl_get_cipher_methods();该方法可以找出openssl支持的所有方法，进行替换即可。
echo '<pre>';$a = openssl_get_cipher_methods();print_r($a); Array( [0] => AES-128-CBC [1] => AES-128-CFB [2] => AES-128-CFB1 [3] => AES-128-CFB8 [4] => AES-128-CTR [5] => AES-128-ECB [6] => AES-128-OFB [7] => AES-128-XTS [8] => AES-192-CBC [9] => AES-192-CFB [10] => AES-192-CFB1 [11] => AES-192-CFB8 [12] => AES-192-CTR [13] => AES-192-ECB [14] => AES-192-OFB [15] => AES-256-CBC [16] => AES-256-CFB [17] => AES-256-CFB1 [18] => AES-256-CFB8 [19] => AES-256-CTR [20] => AES-256-ECB [21] => AES-256-OFB [22] => AES-256-XTS [23] => BF-CBC [24] => BF-CFB [25] => BF-ECB [26] => BF-OFB [27] => CAMELLIA-128-CBC [28] => CAMELLIA-128-CFB [29] => CAMELLIA-128-CFB1 [30] => CAMELLIA-128-CFB8 [31] => CAMELLIA-128-ECB [32] => CAMELLIA-128-OFB [33] => CAMELLIA-192-CBC [34] => CAMELLIA-192-CFB [35] => CAMELLIA-192-CFB1 [36] => CAMELLIA-192-CFB8 [37] => CAMELLIA-192-ECB [38] => CAMELLIA-192-OFB [39] => CAMELLIA-256-CBC [40] => CAMELLIA-256-CFB [41] => CAMELLIA-256-CFB1 [42] => CAMELLIA-256-CFB8 [43] => CAMELLIA-256-ECB [44] => CAMELLIA-256-OFB [45] => CAST5-CBC [46] => CAST5-CFB [47] => CAST5-ECB [48] => CAST5-OFB [49] => DES-CBC [50] => DES-CFB [51] => DES-CFB1 [52] => DES-CFB8 [53] => DES-ECB [54] => DES-EDE [55] => DES-EDE-CBC [56] => DES-EDE-CFB [57] => DES-EDE-OFB [58] => DES-EDE3 [59] => DES-EDE3-CBC [60] => DES-EDE3-CFB [61] => DES-EDE3-CFB1 [62] => DES-EDE3-CFB8 [63] => DES-EDE3-OFB [64] => DES-OFB [65] => DESX-CBC [66] => IDEA-CBC [67] => IDEA-CFB [68] => IDEA-ECB [69] => IDEA-OFB [70] => RC2-40-CBC [71] => RC2-64-CBC [72] => RC2-CBC [73] => RC2-CFB [74] => RC2-ECB [75] => RC2-OFB [76] => RC4 [77] => RC4-40 [78] => RC4-HMAC-MD5 [79] => SEED-CBC [80] => SEED-CFB [81] => SEED-ECB [82] => SEED-OFB [83] => aes-128-cbc [84] => aes-128-cfb [85] => aes-128-cfb1 [86] => aes-128-cfb8 [87] => aes-128-ctr [88] => aes-128-ecb [89] => aes-128-gcm [90] => aes-128-ofb [91] => aes-128-xts [92] => aes-192-cbc [93] => aes-192-cfb [94] => aes-192-cfb1 [95] => aes-192-cfb8 [96] => aes-192-ctr [97] => aes-192-ecb [98] => aes-192-gcm [99] => aes-192-ofb [100] => aes-256-cbc [101] => aes-256-cfb [102] => aes-256-cfb1 [103] => aes-256-cfb8 [104] => aes-256-ctr [105] => aes-256-ecb [106] => aes-256-gcm [107] => aes-256-ofb [108] => aes-256-xts [109] => bf-cbc [110] => bf-cfb [111] => bf-ecb [112] => bf-ofb [113] => camellia-128-cbc [114] => camellia-128-cfb [115] => camellia-128-cfb1 [116] => camellia-128-cfb8 [117] => camellia-128-ecb [118] => camellia-128-ofb [119] => camellia-192-cbc [120] => camellia-192-cfb [121] => camellia-192-cfb1 [122] => camellia-192-cfb8 [123] => camellia-192-ecb [124] => camellia-192-ofb [125] => camellia-256-cbc [126] => camellia-256-cfb [127] => camellia-256-cfb1 [128] => camellia-256-cfb8 [129] => camellia-256-ecb [130] => camellia-256-ofb [131] => cast5-cbc [132] => cast5-cfb [133] => cast5-ecb [134] => cast5-ofb [135] => des-cbc [136] => des-cfb [137] => des-cfb1 [138] => des-cfb8 [139] => des-ecb [140] => des-ede [141] => des-ede-cbc [142] => des-ede-cfb [143] => des-ede-ofb [144] => des-ede3 [145] => des-ede3-cbc [146] => des-ede3-cfb [147] => des-ede3-cfb1 [148] => des-ede3-cfb8 [149] => des-ede3-ofb [150] => des-ofb [151] => desx-cbc [152] => id-aes128-GCM [153] => id-aes192-GCM [154] => id-aes256-GCM [155] => idea-cbc [156] => idea-cfb [157] => idea-ecb [158] => idea-ofb [159] => rc2-40-cbc [160] => rc2-64-cbc [161] => rc2-cbc [162] => rc2-cfb [163] => rc2-ecb [164] => rc2-ofb [165] => rc4 [166] => rc4-40 [167] => rc4-hmac-md5 [168] => seed-cbc [169] => seed-cfb [170] => seed-ecb [171] => seed-ofb)
希望对您有用。
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