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POPHP Garbage collection sucks or is it just me?
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copied!<p>I have the function below which I call very frequently in a loop.</p> <p>I waited 5 minutes as the memory climbed up from 1MB to 156MB. Should't PHP's garabage collector turn up and reduce this at some point?!</p> <p>Is it because I have set memory limit at 256MB?</p> <p>At echo point 2,3,4 its pretty constant memory usage. It goes down my half a meg at point 4. But point 1 is where the main memory increase happens. Probably because of <code>file_get_html</code> loading the html file in memory. </p> <p>I though the clear and unset of the variable <code>$html</code> would take care of this?</p> <pre><code>function get_stuff($link, $category ){ $html = file_get_html(trim("$link")); $article = $html->find('div[class=searchresultsWidget]', 0); echo '1 - > '.convert(memory_get_usage(true)).'<br />'; foreach($article->find('h4 a') as $link){ $next_url = 'http://new.mysite.com'.$link->href; $font_name = trim($link->plaintext); $html = file_get_html(trim("$next_url")); $article = $html->find('form[class=addtags]', 0); $font_tags = ''; foreach($article->find('ul[class=everyone_tags] li a span') as $link){ $font_tags .= trim($link->innertext).','; } echo '2 - > '.convert(memory_get_usage(true)).'<br />'; $font_name = mysql_real_escape_string($font_name); $category = mysql_real_escape_string($category); $font_tags = mysql_real_escape_string($font_tags); $sql = "INSERT INTO tag_data (font_name, category, tags) VALUES ('$font_name', '$category', '$font_tags')"; unset($font_tags); unset($font_name); unset($category); $html->clear(); mysql_query($sql); unset($sql); echo '3 - > '.convert(memory_get_usage(true)).'<br />'; } unset($next_url); unset($link); $html->clear(); unset($html); unset($article); echo '4 - > '.convert(memory_get_usage(true)).'<br />'; } </code></pre> <p>As you can see, I attempted to make use of unset feebly. Although its no good as I understand it won't "unset" memory as soon as I call it.</p> <p>Thanks all for any help on how I can reduce this upward rise of memory.</p>

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