问个正则规则的写法 - V2EX
V2EX = way to explore
V2EX 是一个关于分享和探索的地方
现在注册
已注册用户请  登录
cnqncom
V2EX    PHP

问个正则规则的写法

  •  
  •   cnqncom 2017-10-17 11:24:28 +08:00 3643 次点击
    这是一个创建于 2923 天前的主题,其中的信息可能已经有所发展或是发生改变。
    $str = "<div class='brush:php;'>";
    $key = "brush:(a-z,A-Z);";
    $val = "brush:$1;toolbar:false;";
    echo preg_replace('/'.$key.'/i',$val,$str);



    brush:php;这里可能是 PHP 也可能是 JAVA 等
    需要将 brush:php;这个内容保留,在后面加上 toolbar:false;字符串
    15 条回复    2017-10-17 18:01:27 +08:00
    lrvy
        1
    lrvy  
       2017-10-17 11:38:22 +08:00
    \bbrush\b:[php|java]; 这样吗?
    cnqncom
        2
    cnqncom  
    OP
       2017-10-17 11:41:17 +08:00
    @lrvy 可能不止这些,我希望里面是任意字符串
    2ME
        3
    2ME  
       2017-10-17 11:44:17 +08:00
    用 phpQuery 提取出来 CLASS 简单一点
    askfilm
        4
    askfilm  
       2017-10-17 11:53:14 +08:00
    @cnqncom 把 “;” 换成 “;toolbar:false;” 不就行了,
    或者你不放心的话 把 “ ;' ” 换成 “ ;toolbar:false;' ” 也行啊
    要啥正则
    whahuzhihao
        5
    whahuzhihao  
       2017-10-17 11:54:21 +08:00   1
    echo preg_replace('/brush:([^\s\']+)/i', "brush:$1toolbar:false;","<div class='brush:php;'>");
    cnqncom
        6
    cnqncom  
    OP
       2017-10-17 12:17:31 +08:00
    @askfilm 这样不行哦,其他 CLASS 全部被替换了
    askfilm
        7
    askfilm  
       2017-10-17 12:51:46 +08:00
    @cnqncom 什么 class 里会分号?
    hadixlin
        8
    hadixlin  
       2017-10-17 13:05:13 +08:00
    brush:(.*)?; brush:$1;toolbar:false
    @whahuzhihao 的答案应该就是正解了.

    另外楼主你的需求描述不够清楚,请注意.
    vincenth520
        9
    vincenth520  
       2017-10-17 13:08:42 +08:00
    ```php
    <?php

    $str = "<div class='brush:php;'>";
    $key = "brush:(.+);";
    $val = "brush:$1;toolbar:false;";
    echo preg_replace('/'.$key.'/i',$val,$str);
    ```
    vincenth520
        10
    vincenth520  
       2017-10-17 13:09:44 +08:00
    不支持 markdown,尴尬了
    hibobby
        11
    hibobby  
       2017-10-17 13:11:33 +08:00
    为啥不把"<div class='brush:php;'>";中的 class='brush:php;'提取出来然后分组操作?
    cnqncom
        13
    cnqncom  
    OP
       2017-10-17 15:06:21 +08:00 via Android
    @hadixlin 感谢
    sucaihuo
        14
    sucaihuo  
       2017-10-17 15:56:19 +08:00
    进来学习一下
    renminghao
        15
    renminghao  
       2017-10-17 18:01:27 +08:00
    /brush:(\w+?)/
    关于     帮助文档     自助推广系统     博客     API     FAQ     Solana     1291 人在线   最高记录 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 24ms UTC 17:18 PVG 01:18 LAX 10:18 JFK 13:18
    Do have faith in what you're doing.
    ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86