storage limits of php

[dadamssg87]

I'm worried i'm trying to fit too much data into php and have no idea how to check. I have a script that pulls data from 18 database tables and stores the rows in variables, then my script uses that information to determine what to put in a new array. The new array has arrays in arrays. A typical item in the array will have around 2500 characters. The array will most likely contain 1 to 30 items.

 

Is that too much?

 

How should i go about testing the limits?

 

Is there  a way in php to measure how much ram you're using in a particular script?

[AyKay47]

memory_get_usage or memory_get_peak_usage

[dadamssg87]

nice. didn't know those functions existed. So i'm running php 5.3.2 so have 128M(134,217,728 bytes) to use.

 

I just ran the memory_get_usage() function and it returned 926,312 and the memory_get_peak_usage() returned 969,108.

 

guess i'm looking fine thus far

[AyKay47]

not an easy task to fill up the allocated memory

[dadamssg87]

good to know. thanks!

[Adam]

While I wouldn't just update it willy nilly, you can increase the memory limit PHP imposes. You can either do it in your php.ini file (look for the "memory_limit" directive), which would mean all requests have that limit, or you can do it on a per-request basis using ini_set:

 

ini_set('memory_limit', 'xxM');

 

Edit

 

In-case you find yourself in that position, that is.

[AyKay47]

While I wouldn't just update it willy nilly, you can increase the memory limit PHP imposes. You can either do it in your php.ini file (look for the "memory_limit" directive), which would mean all requests have that limit, or you can do it on a per-request basis using ini_set:

 

ini_set('memory_limit', 'xxM');

 

Edit

 

In-case you find yourself in that position, that is.

yeah, you of course want to compile your code wherever you can to decrease the memory that you are using.. just be careful when manually setting the memory limit..

[dadamssg87]

i'm kind of noob, what exactly do you mean by "compile"?

[Philip]

I think he meant optimize, not compile.