PHP字符串怎么转十六进制
PHP字符串转十六进制的方法:首先创建PHP文件;然后定义一个strToHex方法用于字符串转十六进制;最后在方法体内通过for循环语句、dechex函数以及strtoupper函数来实现转换即可。
今天在做项目中,因为要调用别人网站的接口,结果需要对请求和返回的时间进行十六进制加密处理,于是在网上查了下资料谢了一个转换Demo做个记录。
如果在TP下使用可以将下面函数放到common.php中
一,加密函数
<?php /** *字符串转十六进制函数 *@pream string $str='abc'; */ function strToHex($str){ $hex=""; for($i=0;$i<strlen($str);$i++) $hex.=dechex(ord($str[$i])); $hex=strtoupper($hex); return $hex; } ?>
二、解密函数
<?php /** *十六进制转字符串函数 *@pream string $hex='616263'; */ function hexToStr($hex){ $str=""; for($i=0;$i<strlen($hex)-1;$i+=2) $str.=chr(hexdec($hex[$i].$hex[$i+1])); return $str; } ?>
加密 解密 转换 函数使用Demo事例,这里为了方便写在了一个类中。
<?php class Test{ /** *字符串转十六进制函数 *@pream string $str='abc'; */ public function strToHex($str){ $hex=""; for($i=0;$i<strlen($str);$i++) $hex.=dechex(ord($str[$i])); $hex=strtoupper($hex); return $hex; } /** *十六进制转字符串函数 *@pream string $hex='616263'; */ public function hexToStr($hex){ $str=""; for($i=0;$i<strlen($hex)-1;$i+=2) $str.=chr(hexdec($hex[$i].$hex[$i+1])); return $str; } } <span style="white-space:pre"> </span>//测试Demo效果 $test = new Test(); $str = '要加密的内容sxfenglei'; $data = $test->strToHex($str); echo '加密内容:要加密的内容sxfenglei <br>'.$data.'<hr>'; $output = $test->hexToStr($data); echo '解密内容:E8A681E58AA0E5AF86E79A84E58685E5AEB9737866656E676C6569 <br>'.$output; ?>
运行结果:
加密内容:要加密的内容sxfenglei
E8A681E58AA0E5AF86E79A84E58685E5AEB9737866656E676C6569
解密内容:
E8A681E58AA0E5AF86E79A84E58685E5AEB9737866656E676C6569
要加密的内容sxfenglei
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