Commonly used hash encryption functions in PHP-PHP Tutorial-php.cn

The example in this article describes the commonly used hash encryption function in PHP. Share it with everyone for your reference. The specific analysis is as follows:

The code is as follows:

$hash_list=hash_algos(); //返回注册的hash规则列表 print_r($hash_list); //显示结果

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Create a file to calculate the hash value: file_put_contents('example.txt', 'the quick brown fox jumped over the lazy dog.');

Output the hash value Information:

The code is as follows:

echo hash_file('md5', 'example.txt'); $str="the quick brown fox jumped over the lazy dog."; //定义字符串 echo hash('ripemd160',$str); //生成哈希值 $ctx=hash_init('md5'); //初始化一个hash值 hash_update($ctx,'the quick brown fox'); //向哈希值灌注数据 hash_update($ctx,'jumped over the lazy dog.'); //向哈希值灌注数据 echo hash_final($ctx); //输出最后的结果 $str="the quick brown fox jumped over the lazy dog."; //定义字符串 $fp=tmpfile(); //创建一个临时文件 fwrite($fp,$str); //将字符串写入到临时文件 rewind($fp); //倒回文件指针的位置 $ctx=hash_init('md5'); //初始化一个hash值 hash_update_stream($ctx,$fp); //向数据流中灌注数据 echo hash_final($ctx); //输出结果 $str="the quick brown fox jumped over the lazy dog."; //定义字符串 echo hash_hmac('ripemd160',$str,'secret'); //生成包含密钥的hash值 /*创建一个文件并将字符串写入其中*/ $file="example.txt"; //定义文件名 $str=" the quick brown fox jumped over the lazy dog."; //定义字符串 file_put_contents($file,$str); //向文件中写入字符串 echo hash_hmac_file('md5',$file,'secret'); //生成一个包含密钥的hash值 $ctx=hash_init('sha1'); //定义字符串 hash_update($ctx,'the quick brown fox jumped over the lazy dog.'); //向哈希值中灌注数据 echo hash_final($ctx); //输出结果

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