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HomeBackend DevelopmentPHP Tutorialmysql 遇到特殊字符,造成了数据不全

我是把数组序列化之后存入数据库的某个字段,但是数组中有些数据的值带有特殊字符,如图:

保存在数据库之后就成这样子了


类似这样的特殊字符还有很多的;

丢失了一部分数据,哪位哥哥遇到过这种情况吗?请赐教。


回复讨论(解决方案)

什?特殊字符,把字符串base64_encode後?出?看看。

什?特殊字符,把字符串base64_encode後?出?看看。


[code=php]$str = '龙华


竟然不让贴php代码


$str = '龙华


什?特殊字符,把字符串base64_encode後?出?看看。


[code=php]$str = '龙华
我还是截图吧

请给出真实的数据

什?特殊字符,把字符串base64_encode後?出?看看。


请给出真实的数据


数据就是那些,我不知道还缺哪些数据? 特殊的字符我这里显示不出来。

header('Content-type: text/html;charset=utf-8');$s = '6b6Z5Y2O8K+gpQ==';echo $t = base64_decode($s), PHP_EOL;echo bin2hex($t);
龙华

header('Content-type: text/html;charset=utf-8');$s = '6b6Z5Y2O8K+gpQ==';echo $t = base64_decode($s), PHP_EOL;echo bin2hex($t);
龙华



header('Content-type: text/html;charset=utf-8');$s = '6b6Z5Y2O8K+gpTEyMzEyMzEyMw==';echo $t = base64_decode($s), PHP_EOL;echo pack("H*", bin2hex($t));
 

这样的就不行诶~~ 而且中间应该不是空格

你在做什么?

header('Content-type: text/html;charset=utf-8');$s = '6b6Z5Y2O8K+gpTEyMzEyMzEyMw==';$t = base64_decode($s), PHP_EOL;echo bin2hex($t);
e9be99e58d8e f0afa0a5313233313233313233

不是跟你说了吗?那是表情符,PC 中的浏览器都是不会显示的

因为前端阻止不了用户的输入,需要后端过滤掉这些数据,然后才插入数据库的。
不然数据库里显示的信息不全。

把不是utf8的字符??就可以了。

header('Content-type: text/html;charset=utf-8');$s = '6b6Z5Y2O8K+gpTEyMzEyMzEyMw==';$t = base64_decode($s). PHP_EOL;echo $t.'<br>';echo filter_utf8_char($t);/** ??字符串,保留UTF8字母?字中文及部份符? *   @param  String  $ostr *   @return String */  function filter_utf8_char($ostr){      preg_match_all('/[\x{FF00}-\x{FFEF}|\x{0000}-\x{00ff}|\x{4e00}-\x{9fff}]+/u', $ostr, $matches);      $str = join('', $matches[0]);      if($str==''){   //含有特殊字符需要逐??理          $returnstr = '';          $i = 0;          $str_length = strlen($ostr);          while ($i<=$str_length){              $temp_str = substr($ostr, $i, 1);              $ascnum = Ord($temp_str);              if ($ascnum>=224){                  $returnstr = $returnstr.substr($ostr, $i, 3);                  $i = $i + 3;              }elseif ($ascnum>=192){                  $returnstr = $returnstr.substr($ostr, $i, 2);                  $i = $i + 2;              }elseif ($ascnum>=65 && $ascnum<=90){                  $returnstr = $returnstr.substr($ostr, $i, 1);                  $i = $i + 1;              }elseif ($ascnum>=128 && $ascnum<=191){ // 特殊字符                  $i = $i + 1;              }else{                  $returnstr = $returnstr.substr($ostr, $i, 1);                  $i = $i + 1;              }          }          $str = $returnstr;          preg_match_all('/[\x{FF00}-\x{FFEF}|\x{0000}-\x{00ff}|\x{4e00}-\x{9fff}]+/u', $str, $matches);          $str = join('', $matches[0]);      }      return $str;  }  

龙华

不是前台输入什么,数据库就要存什么的,输入要做一下限制,然后再存。可以跟上级沟通一下。

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