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PODoes this regex in PHP actually work?
 

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  1. PODoes this regex in PHP actually work?
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    <p>I am hoping the regular expression experts can tell me why this is going wrong:</p> <p>This regex:</p> <pre><code>$pattern = '/(?&lt;percent&gt;[0-9]{1,3}\.[0-9]{1,2})% of (?&lt;filesize&gt;.+) at/'; </code></pre> <p>Should match this sort of string:</p> <pre><code>[download] 87.1% of 4.40M at 107.90k/s ETA 00:05 [download] 89.0% of 4.40M at 107.88k/s ETA 00:04 [download] 91.4% of 4.40M at 106.09k/s ETA 00:03 [download] 92.9% of 4.40M at 105.55k/s ETA 00:03 </code></pre> <p>Correct? Is there anything that could go wrong with that regex that will not get it to match with the above input? Full usage here:</p> <pre><code>while(!feof($handle)) { $progress = fread($handle, 8192); $pattern = '/(?&lt;percent&gt;[0-9]{1,3}\.[0-9]{1,2})% of (?&lt;filesize&gt;.+) at/'; if(preg_match_all($pattern, $progress, $matches)){ //matched } } </code></pre> <p>Could how much that is being read by <strong>fread</strong> be effecting the regex to work correctly?</p> <p>I really need confirmation as I am trying to identify why it isn't working on a new server. This question is related to <a href="https://stackoverflow.com/questions/664332/change-in-server-permits-script-not-to-work-can-this-be-due-to-php-ini-being-dif">Change in Server Permits script not to work. Can this be due to PHP.ini being different?</a></p> <p>Thanks all</p> <h2>Update 2</h2> <p>I have made a test script to test the regex but even on its own it doesn't work??</p> <pre><code>&lt;?php error_reporting(E_ALL); echo 'Start'; $progress = "[download]75.1% of 4.40M at 115.10k/s ETA 00:09 [download] 77.2% of 4.40M at 112.36k/s ETA 00:09 [download] 78.6% of 4.40M at 111.41k/s ETA 00:08 [download] 80.3% of 4.40M at 110.80k/s ETA 00:07 [download] 82.3% of 4.40M at 110.30k/s ETA 00:07 [download] 84.3% of 4.40M at 108.33k/s ETA 00:06 [download] 85.7% of 4.40M at 107.62k/s ETA 00:05 [download] 87.5% of 4.40M at 107.21k/s ETA 00:05 [download] 89.5% of 4.40M at 105.10k/s ETA 00:04 [download] 90.7% of 4.40M at 106.45k/s ETA 00:03 [download] 93.2% of 4.40M at 104.92k/s ETA 00:02 [download] 94.8% of 4.40M at 104.40k/s ETA 00:02 [download] 96.5% of 4.40M at 102.47k/s ETA 00:01 [download] 97.7% of 4.40M at 103.48k/s ETA 00:01 [download] 100.0% of 4.40M at 103.15k/s ETA 00:00 [download] 100.0% of 4.40M at 103.16k/s ETA 00:00 "; $pattern = '/(?&lt;percent&gt;\d{1,3}\.\d{1,2})%\s+of\s+(?&lt;filesize&gt;[\d.]+[kBM]) at/'; if(preg_match_all($pattern, $progress, $matches)){ echo 'match'; } echo '&lt;br&gt;Done&lt;br&gt;'; ?&gt; </code></pre>
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    1. COCan you specify "it isn't working"?
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    2. COIt does not execute the if function, meaning it does not match anything from the input string.
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    3. COOn what input, exactly (spaces and all)?
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