How To Encrypt A File In Php

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Recent learning URL jump when new into three PHP encryption and decryption function is very good, looks like the discuz ... Use these encryption to decrypt the reason is because sometimes their own URL address was acquired after you want to break inside the value of the content you must know your key, no key, he should be broken for a while to know the content of your URL. Pack them into a file called fun.php bar <?php function Passport_encrypt ...

php tutorial generic anti-injection is mainly to filter some sql command and php post get pass over reference / we want to filter some illegal characters, so that you can prevent the basic injection, and that off the apache server installation settings method is also necessary. Administrator user name and password are taken md5 encryption, so that we can effectively prevent the injection of php. There are servers and mysql tutorials should also strengthen some security precautions. For linux server security settings: encrypted password, use "/ usr / sbin / authconf ...

AddSlashes: String added to the slash. bin2hex: binary into hexadecimal. Chop: Remove continuous blanks. Chr: returns the ordinal value of the character. chunk_split: The string is divided into small pieces. convert_cyr_string: Converts the ancient Slavonic string into another string. crypt: Encrypt the string with DES encoding. echo: output string. explode: cut the string. flush: clear the output buffer. ...

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MCRYPT_ECB uses the ECB to add/decrypt information. Syntax: string MCRYPT_ECB (int cipher, string key, string data, int mode);  Return value: String function kind: Encoding processing &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Content description ...

MCRYPT_CFB uses CFB to add/decrypt data. Syntax: string MCRYPT_CFB (int cipher, string key, string data, int mode, string iv); Return value: String function kind: Encoding processing &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp ...

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MCRYPT_OFB use OFB to add/decrypt data. Syntax: string mcrypt_ofb (int cipher, string key, string data, int mode, string iv); Return value: String function kind: Encoding processing content Description This function uses OFB password to retrieve this (output feedback), encrypt and decrypt the data. parameter cipher to add/decrypt method, for example ...