搜索字符串和返回行PHP [英] Search String and Return Line PHP

问题描述

我正在尝试在PHP文件中搜索字符串，当找到该字符串时，我想返回该字符串所在的整个LINE.这是我的示例代码.我在想我必须使用explode，但无法弄清楚.

I'm trying to search a PHP file for a string and when that string is found I want to return the whole LINE that the string is on. Here is my example code. I'm thinking I would have to use explode but cannot figure that out.

$searchterm =  $_GET['q'];

$homepage = file_get_contents('forms.php');

 if(strpos($homepage, "$searchterm") !== false)
 {
 echo "FOUND";

 //OUTPUT THE LINE

 }else{

 echo "NOTFOUND";
 }

推荐答案

只需使用 file 函数.

Just read the whole file as array of lines using file function.

function getLineWithString($fileName, $str) {
    $lines = file($fileName);
    foreach ($lines as $lineNumber => $line) {
        if (strpos($line, $str) !== false) {
            return $line;
        }
    }
    return -1;
}

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