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Home Backend Development PHP Tutorial php拼字符串 请教

php拼字符串 请教

Jun 23, 2016 pm 01:39 PM

每次拼字符串,感觉头大。 因为没有这坏习惯


在改一段老代码 
引用一个js方法,如下

删除


现在要把上边的 删除写法,放到下边的 删除上边,可不知道怎么拼
 echo " $intserial ".$value['realname']." ".$value['mobile']." ".$arrgender[$value['gender']]." ".$value['idnumber']." ".$value['passportnu']." 删除 ";

--------------------------------------------------------------------------------------------------------------
写了几个都不对
错误一:
  echo " $intserial ".$value['realname']." ".$value['mobile']." ".$arrgender[$value['gender']]." ".$value['idnumber']." ".$value['passportnu']." 删除 ";


回复讨论(解决方案)

你最终需要的 HTML 是什么样的?
由此出发,才能把事情做好

你的 href="javascript:confirmDelete('delgroup.asp?gid=14','组一旦删除,数据将无法恢复。您确实要删除此记录吗?');"
含义不明

1.  双引号和单引号不能嵌套,如果嵌套,中间的部分要加转义。
2.  单引号和双引号可以交替使用。
3. 引号较多的,可以使用heredoc语法
4. 拼接字符串较多时,你可以一次只拼接一行。
$str .= '

';
$str .= "";

基于这些原则,拼接字符串也是很容易的:
拼接1:
<?php    function base_url(){        return "http://base/";    }    $value = array(        'userid' => 1,        'realname' => 'name',        'mobile' => '13590909090',        'gender' => '1',        'idnumber' => 'idnum',        'passportnu' => 'passport',    );    $intserial = 'ang?';    echo "<tr>        <td>$intserial</td>        <td><a href='" . base_url() . "team/alterinfo?id=" . $value['userid'] . "'>" . $value['realname']."</a></td>        <td>" . $value['mobile'] . "</td><td>" . $value['gender'] . "</td>        <td>" . $value['idnumber'] . " " . $value['passportnu'] . "</td>        <td><a href='javascript:confirmDelete(\"" . base_url() . "team/deletemember?id=" . $value['userid'] . "\",'confirm delet    e?')'>delete</a></td>        </tr>";
Copy after login


拼接2 :
$str  = "<tr>";$str .= "<td>$intserial</td>";$str .= "<td><a href='" . base_url() . "team/alterinfo?id=" . $value['userid'] . "'>" . $value['realname']."</a></td>";$str .= "<td>" . $value['mobile'] . "</td><td>" . $value['gender'] . "</td>";$str .= "<td>" . $value['idnumber'] . " " . $value['passportnu'] . "</td>";$str .=  "<td><a href='javascript:confirmDelete(\"" . base_url() . "team/deletemember?id=" . $value['userid'] . "\",\"confir    m delete?\")'>delete</a></td>";$str .= "</tr>";echo $str;
Copy after login


第二种方法每次只拼接一小部分, 拼接出错的概率更低。

如果你是html与php混写,那么完全可以只用php echo 变量,其余的部分用html代码。

多谢两位前辈

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