php - Fatal error: Allowed memory size exhausted

Solution:

Your PHP configuration is limiting PHP to only 16 megabytes of memory. You need to modify thememory_limit configuration directive in php.ini to increase it.

Look for the line in php.ini that looks like this:

memory_limit = 16M
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...and change to to a large value (16M = 16 megabytes, you could increase it to something like64M for 64 megabytes, et cetera). If you can't find any line like that, add it.

If you prefer to only increase it on a per-script basis, you can also useini_set() to change the value for that script only.

Solution:

You can also use memory_get_peak_usage() to find out which part of the program is eating your memory.

Solution:

Use a SAX parser instead of a DOM parser, and you won't run out of memory. DOM occupies 8-10 times the memory that the actual document stream does, whereas SAX has a reasonable constant overhead regardless of document size.

Solution:

ini_set("memory_limit","XXM");
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please notice that some servers prevent this from working (though in a VPS this shouldn't be an issue, it's mostly a web hosting problem).

edit: instead of "XX" write the actual size, such as128M

Solution:

Make sure that you have specified the correct acceptable settings for:

• file_uploads
• upload_max_filesize
• max_input_time
• memory_limit
• max_execution_time
• post_max_size

You can call thephpinfo() function to find the location of yourphp.ini file, it will also tell you the current values for the following settings that you need to modify.

You could use theini_set function to set some of those values from within your script too.

SEE:

Howto optimize your PHP installation to handle large file uploads.

Solution:

It is dirty but in some cases with large XML files it is faster to get the values via regular expressions! And if it is a well formatted XML there should be no problem!

pseudo code:

preg_match('+<title>(.*)</title>+', $xml_content, $matches);
var_dump($matches);
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Solution:

for shared hosting put this line to you index.php

ini_set("memory_limit","128M");
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