dongwenyou4298 2014-04-09 21:10
浏览 29
已采纳

PHP sprintf和范围

I've been rearranging some code for better readability/maintainability, but hit an issue I can't quite figure out.

The original code was basically as follows:

$myFormat = '/* HTML structure */';

try {
    // SQL queries
    // Sorting and storing relevant data
    echo sprintf($myFormat,$1,$2...$N);
}
catch{
    // Error handling if there's a db issue
}

Which worked but wasn't very well organised, given that a load of unnecessary stuff was contained within the SQL-oriented try/catch block.

So I changed it to the following:

$myFormat = '/* HTML structure */';

function dataHandling($a1,$a2...){
    // Sorting and storing relevant data
    echo sprintf($myFormat,$1,$2...$N);
}

try {
    // SQL queries
    dataHandling($s1,$s2...);
}
catch{
    // Error handling if there's a db issue
}

And everything appears to work except for the echo sprintf line inside dataHandling, which is fairly significant. I've only been writing php for a for days and assume it's a scope issue, but I can't find any info addressing a similar issue.

  • 写回答

2条回答 默认 最新

  • doukongpao0903 2014-04-09 21:18
    关注

    You need to pass $myFormat as a parameter. Also, the parameters to sprintf must match the function parameters.

    function dataHandling($format, $a1,$a2...){
        // Sorting and storing relevant data
        echo sprintf($format,$a1,$a2...);
    }
    
    try {
        dataHandling($myFormat, $s1,$s2...);
    }
    catch{
        // Error handling if there's a db issue
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(1条)

报告相同问题?

悬赏问题

  • ¥100 需要跳转番茄畅听app的adb命令
  • ¥50 寻找一位有逆向游戏盾sdk 应用程序经验的技术
  • ¥15 请问有用MZmine处理 “Waters SYNAPT G2-Si QTOF质谱仪在MSE模式下采集的非靶向数据” 的分析教程吗
  • ¥50 opencv4nodejs 如何安装
  • ¥15 adb push异常 adb: error: 1409-byte write failed: Invalid argument
  • ¥15 nginx反向代理获取ip,java获取真实ip
  • ¥15 eda:门禁系统设计
  • ¥50 如何使用js去调用vscode-js-debugger的方法去调试网页
  • ¥15 376.1电表主站通信协议下发指令全被否认问题
  • ¥15 物体双站RCS和其组成阵列后的双站RCS关系验证