PHP正则表达式/搜索并替换多个文件中的多行字符串

Question

I have several hundred .markdown files that I need to loop through and replace the following multiline strings:

---
---

I currently have the following code:

foreach (glob("*.markdown") as $filename)
{
    $file = file_get_contents($filename);
    file_put_contents($filename, preg_replace("/regexhere/","replacement",$file));
}

My question is, which regex do I need to remove the multi line strings in every file.

Thanks

Answer 1

this can be done faster with str_replace(), like so:

<?php
echo "<pre>";

$file="my file
is
this
---
---
goats";

echo str_replace("---
---
",'',$file);

which returns:

my file
is
this
goats

Live Demo: http://codepad.viper-7.com/p1Bant

line breaks can be or depending on os\software