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POPHP preg_replace 'e' modifier dilemma
 

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  1. POPHP preg_replace 'e' modifier dilemma
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    <p>I've been fighting with this for a few days now and it looks like I really have to ask someone else.</p> <p>For the purposes of this thread, here is the problem: I am trying to manipulate a string using PHP's preg_replace and the 'e' modifier to execute a function within it. I want to change any instance of <code>[pdf]somefilename[/pdf]</code> to <code>&lt;a href="somefilename.pdf"&gt;PDF&lt;/a&gt; size('somefilename.pdf');</code></p> <p>So, for example maybe <code>[pdf]somefilename[/pdf]</code> would output a link to the file followed by (137MB).</p> <p>For some reason, however, the (137MB) part is being put at the <em>beginning</em> of the entire string, instead of where it's supposed to be. It seems like <code>preg_replace</code> is evaluating everything, then going back and executing the function and just throwing the result in the beginning of the string.</p> <p>So if I had <code>Some text blah, blah. Download the document: [pdf]somefilename[/pdf]</code> the regular expression outputs <code>(137MB) Some text blah, blah. Download the document: [link to document]</code> when it <em>should</em> output <code>Some text blah, blah. Download the document [link to document] (137MB)</code>.</p> <p>I'm lost. Google can't save me. Someone please help!</p> <p>Thanks in advance, Jeff</p> <p>Here's the code:</p> <pre><code>$bbcode_pdf_tag = '/\[pdf\](.*?)\[\/pdf\]/ie'; $html_pdf_tag = '"&lt;a href=\"$1.pdf\"&gt;PDF&lt;/a&gt;" .size("\\1.pdf")'; $decoded_data = preg_replace($bbcode_pdf_tag, $html_pdf_tag, $data); </code></pre> <p>EDIT: It's worth mentioning that size() is defined in a completely different file and this doesn't seem to happen when I use a built-in function such as strtolower(). Defining the size() function internally and using preg_replace_callback does not solve the problem.</p>
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    1. USJeff Meyers
    1. USJeff Meyers
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    1. COpsst, posting the code (or at least the regular expression) would make it easier for people to help you.
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      1. USCharlesLeaf
    2. COWe can't help you without knowing what you're doing. Please *actually provide the code*.
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      1. USAntal Spector-Zabusky
    3. COPlease post your `preg_replace` call so we can take a look.
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      1. USnetcoder
 

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