PHP Allowed memory size of X bytes exhausted

Question

I'm using mPDF library to create and download PDF files, for example x1000 (singly using ajax) in loop.
Sometimes I get error message for series of files "Allowed memory size of 268435456 bytes exhausted (tried to allocate 261900 bytes)". I read that I have to set bigger memory_limit in configuration but I can't do this, because 256M is my limit.

Is there any other solution for this error?

score 2 · Accepted Answer · answered Jul 23 '15 at 14:02

2

You can reduce memory usage two other ways without increasing the memory limit...

Consider setting $mpdf->simpleTables = true; if you do not need complex table borders, or $mpdf->packTableData = true; if you do not mind the extra processing time.
packTableData – Use binary packing of table data to reduce memory usage

Both of which will increase processing time in order to save memory usage.

answered Jul 23 '15 at 14:02

Rob W

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First solution allowed me to save 5MB. Thanks a lot. – Rafał Jul 24 '15 at 11:03

score 0 · Answer 2 · answered Jul 23 '15 at 14:01

0

Try it in a test environment with higher memory limit, to ensure that the problem is a memory limit issue. Maybe you have an infinite loop or an infinite recursive call that is consuming your memory.

answered Jul 23 '15 at 14:01

David Rojo

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I am sure that there is no infinite loop. I tried it on localhost (where memory_limit = 128M) and there was no problem with this.. – Rafał Jul 23 '15 at 14:02

PHP Allowed memory size of X bytes exhausted

2 Answers2