在文件中添加一行

Question

So I have this auto-generated HTML file. http://pastebin.com/mTMJNrdm

I'm trying to write a PHP script that replaces line 5 with this.

<LINK href="style.css" rel="stylesheet" type="text/css"></style>

I'm trying to wrap my head around it since it's a file. What function could accomplish this for me?

Current code:

$fh = file('standings.html');

$css = addslashes('<LINK href="style.css" rel="stylesheet" type="text/css"></style>');

$pattern = "</style>";

foreach ($fh as $lines) {
     if (preg_match($pattern, $lines)) {
         // Replace this line with $css
     }
}

Answer 1

php file function already reads an entire file into an array. Just replace the needed line by specifying the needed index:

$lines = file('standings.html');

$lines[4] = addslashes('<LINK href="style.css" rel="stylesheet" type="text/css"></style>');
$new_content = implode(" ", $lines);

file_put_contents('standings.html', $new_content);