OK, seems what's causing issue is imagecreatefromstring(), since, directly
after retrieving longblob data from database, memory usage is:
3402136 = 3.*Mb
and, then immediately after that calling:
$imgOut = imagecreatefromstring($bOut);
and, return that $imgOut variable to calling function, before do anything
else, memory usage:
44063856 - 44Mb+
And, this is on my windows development machine, so seems issue is with
operations, and not machine specific, although not sure why it's working on
this machine, and not on production server.
Either way, think will, for now, switch image output rendering back to
simpler method that worked before, instead of using actual mysqli_statement,
and see if works as such - might also put the memory usage 'logging' in
there, to actually compare them, or something.
Stay well
Jacob Kruger
Blind Biker
Skype: BlindZA
'...fate had broken his body, but not his spirit...'
----- Original Message -----
From: "Sascha Meyer" <harlequin2@xxxxxx>
To: "Jacob Kruger" <jacob@xxxxxxxxxxxxx>
Sent: Friday, August 16, 2013 8:57 AM
Subject: Aw: Next question about data output...<smile>
Good morning Jacob,
could you check if memory has been eaten up before the mysqli_statement is
executed? memory_get_usage() [1] could help in that case. Are you using
different PHP versions on your local dev machine and on the production
server?
Best regards,
Sascha
[1] http://php.net/manual/en/function.memory-get-usage.php
Gesendet: Freitag, 16. August 2013 um 08:42 Uhr
Von: "Jacob Kruger" <jacob@xxxxxxxxxxxxx>
An: php-windows@xxxxxxxxxxxxx
Betreff: Next question about data output...<smile>
On my development, windows machine, the memory_limit iniValue is set to
128M, and on the production server - think linux box, it's set to 1280M,
but, the bit of script to render an image from database as image resource
to browser, works fine on my machine, but, on server, the following error
occurs:
PHP Fatal error: Allowed memory size of 1342177280 bytes exhausted (tried
to allocate 4294967296
According to server log, it seems to be happening on the line where the
mysqli_statement tries to execute the query to retrieve a longblob value
of 2.1Mb, but anyway.
I am making sure try to destroy any image resources, etc., am closing
statement object after executing it, etc. - and there aren't really any
recursive loops being executed, but, just a page instantiating an
instance of a wrapper class, which then refers to the imageManipulation
object, to then pull the images data out of the DB - thoughts?
TIA
Jacob Kruger
Blind Biker
Skype: BlindZA
'...fate had broken his body, but not his spirit...'
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