$tem = $arr['invoice_type'];
echo "
"; <br> print_r($tem); <br> 输出 <br> a:2:{s:4:"type";a:3:{i:0;s:8:"个人发票";i:1;s:8:"企业发票";i:2;s:0:"";}s:4:"rate";a:3:{i:0;d:6;i:1;d:6;i:2;d:0;}} <br> <br> $teem []= preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.strlen('$2').':\"$2\";'", $arr['invoice_type'] ); <br> echo "<pre class="brush:php;toolbar:false">"; <br> print_r($teem); <br> 输出 <br> Array <br> ( <br> [0] => a:2:{'s:'.strlen('type').':"type";'a:3:{i:0;'s:'.strlen('个人发票').':"个人发票";'i:1;'s:'.strlen('企业发票').':"企业发票";'i:2;'s:'.strlen('').':"";'}'s:'.strlen('rate').':"rate";'a:3:{i:0;d:6;i:1;d:6;i:2;d:0;}} <br> ) <br> <br> $teemm []= preg_replace_callback('!s:(\d+):"(.*?)";!s', function ($matches) {return strlen('$2').':\"$2\";';}, $arr['invoice_type'] ); <br> echo "<pre class="brush:php;toolbar:false">"; <br> print_r($teemm); <br> 输出 <br> Array <br> ( <br> [0] => a:2:{2:\"$2\";a:3:{i:0;2:\"$2\";i:1;2:\"$2\";i:2;2:\"$2\";}2:\"$2\";a:3:{i:0;d:6;i:1;d:6;i:2;d:0;}} <br> ) <br> <br> 如何让preg_replace_callback输出的信息和preg_replace输出的一样 <p> </p> <br> <h2>回复讨论(解决方案)</h2> <p class="sougouAnswer"> 不知道你要干什么 <br> 实例的结果并不对! </p> <p class="sougouAnswer"> 第二个输出弄错了是下面的 <br> $teem []= preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.strlen('$2').':\"$2\";'", $arr['invoice_type'] ); <br> echo "</p><pre class="brush:php;toolbar:false">"; <br> print_r($teem); <br> 输出 <br> Array <br> ( <br> [0] => a:2:{s:4:"type";a:3:{i:0;s:8:"个人发票";i:1;s:8:"企业发票";i:2;s:0:"";}s:4:"rate";a:3:{i:0;d:6;i:1;d:6;i:2;d:0;}} <br> ) <p class="sougouAnswer"> </p><p class="yy"> 不知道你要干什么 <br> 实例的结果并不对! </p> <br> <br> 第二个输出弄错了是下面的 <br> $teem []= preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.strlen('$2').':\"$2\";'", $arr['invoice_type'] ); <br> echo "<pre class="brush:php;toolbar:false">"; <br> print_r($teem); <br> 输出 <br> Array <br> ( <br> [0] => a:2:{s:4:"type";a:3:{i:0;s:8:"个人发票";i:1;s:8:"企业发票";i:2;s:0:"";}s:4:"rate";a:3:{i:0;d:6;i:1;d:6;i:2;d:0;}} <br> ) <p class="sougouAnswer"> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="sycode" name="code">$s = preg_replace_callback('/s:\d+:"(.+?)";/s', function($r) { $n = strlen($r[1]); return "s:$n:\"$r[1]\";"; }, $s);
$s = preg_replace_callback('/s:\d+:"(.+?)";/s', function($r) { $n = strlen($r[1]); return "s:$n:\"$r[1]\";"; }, $s);
"; <br> print_r($teem); <br> 输出 <br> a:2:{s:4:"type";a:3:{i:0;s:8:"个人发票";i:1;s:8:"企业发票";i:2;s:12:"";}s:4:"rate";a:3:{i:0;d:6;i:1;d:6;i:2;d:0;}} <br> <br> 企业发票后边S:0:"" 变为了s:12:"" 多了12长度,这个怎么来的 <br> <p class="sougouAnswer"> 没考虑值为空的情况 <br> 把 '/s:\d+:"(.+?)";/s' <br> 改为 '/s:\d+:"(.*?)";/s' </p> <p class="sougouAnswer"> </p><p class="yy"> 没考虑值为空的情况 <br> 把 '/s:\d+:"(.+?)";/s' <br> 改为 '/s:\d+:"(.*?)";/s' </p> <br> <br> 万分感谢