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POPreg_replace not replacing correctly
 

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    <p>Im working on a project of mine, where people can add pieces of php code into my database. To display these im using SyntaxHighlighter. Im using preg_replace to escape all the &lt; brackets within pre tags. This is needed so syntaxhighlighter renders the code properly. It works fine on php tags and stuff..</p> <p>This is my code to render the input from my database: </p> <pre><code> public function renderPre($input) // Function to escape html brackets within PRE tags. { $temp = preg_replace('/&lt;pre&gt;(.*?)&lt;\/pre&gt;/ise', "'&lt;pre&gt;' . htmlspecialchars('$1') . '&lt;/pre&gt;'", $input); return str_replace('&lt;pre&gt;', '&lt;pre class=\'brush: php\'&gt;', $temp); } </code></pre> <p>Once the brackets have been escaped i add a class to the pre tag to activate the highlighter.</p> <p>In my database the code is stored like this :</p> <pre><code>&lt;pre&gt;&lt;?php foreach ($tutorial as $row) { echo "&lt;h1&gt;".$row['title']."&lt;/h1&gt;"; echo $this-&gt;content_model-&gt;renderPre($row['intro']); echo $this-&gt;content_model-&gt;renderPre($row['body']); } ?&gt;&lt;/pre&gt; </code></pre> <p>Now on my actual page, where the code is retrieved from the database and displayed in the highlighter, this is the output :</p> <pre><code>&lt;?php foreach ($tutorial as $row) { echo \"&lt;h1&gt;\".$row['title'].\"&lt;/h1&gt;\"; echo $this-&gt;content_model-&gt;renderPre($row['intro']); echo $this-&gt;content_model-&gt;renderPre($row['body']); } ?&gt; </code></pre> <p>At the line where the H1 tag is, it adds a few extra slashes ( \ ) I dont know why it does this. It must have something to do with the /ise in the render function.</p> <p>Does anyone have any idea on how to fix this?</p> <p>Thanks!!</p> <p>edit :</p> <p>The code to retrieve stuff from the database :</p> <pre><code> public function get_tutorial() { $sql = "Select tutorial.*, category.name, category.slug As slug1 From tutorial Inner Join category On tutorial.category_id = category.id WHERE tutorial.slug = '".$this-&gt;uri-&gt;segment(3)."' "; $query = $this-&gt;db-&gt;query($sql); return $query-&gt;result_array(); } </code></pre>
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    1. USDavid Ericsson
    1. USDavid Ericsson
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    1. COCan you show us the code used to write data to and read data from the database?
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      1. USJocelyn
    2. COadded the code to read the data, havent made the code to insert it yet, added it manually to the database
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      1. USDavid Ericsson
    3. COIt works fine for me (see [codepad](http://codepad.org/doIwcpnw)). On another note, why do you have this `$temp`? Why not just replace with `"'<pre class=\"brush: php\">' . htmlspecialchars('$1') . '</pre>'"` from the start and return that? (eg: http://codepad.org/9IDycZuY)
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