我需要打开一个文本文件并替换一个字符串。我需要这个
Old String: <span id="$msgid" style="display: block;">
New String: <span id="$msgid" style="display: none;">
这是我到目前为止所拥有的,但除了额外的空格之外,我没有看到文本文件有任何变化。
$msgid = $_GET['msgid'];
$oldMessage = "";
$deletedFormat = "";
// Read the entire string
$str = implode("\n", file('msghistory.txt'));
$fp = fopen('msghistory.txt', 'w');
// Replace something in the file string - this is a VERY simple example
$str = str_replace("$oldMessage", "$deletedFormat", $str);
fwrite($fp, $str, strlen($str));
fclose($fp);
我该怎么做?
这是否有效:
$msgid = $_GET['msgid'];
$oldMessage = '';
$deletedFormat = '';
//read the entire string
$str=file_get_contents('msghistory.txt');
//replace something in the file string - this is a VERY simple example
$str=str_replace($oldMessage, $deletedFormat,$str);
//write the entire string
file_put_contents('msghistory.txt', $str);
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