I have a huge 2 dimensional php array, and I am wondering if there is a way to print out the dimensions (widthxheight) of this array.

Could you be more specific how your Array is built.

Array {
"Width" => Array { "height" }
}

???

There may be lots of possiblities, show us a bit more.

Regards,

G

Thanks for the response. the array SHOULD be 12,000 values by about 20 values
it is built by this method:


for($i=0;$i<$datarows;$i++)
{
for($h=0;$h<12000;$h++)
{
$array[$i][$h]=$value;
}
}

The reason I want to get the dimensions is because after the script runs I serialize() the array, the save the string to a text file. Then when I read the string in using:

$array = unserialize(file_get_contents("array.txt",1));

something is messed up.

May I ask what are you trying to do ? May help find a suitable answer to your needs.

I don't think this is the right approach to create a 2 dimensional array with a static value.

Regards,

G

its actually not a static value. there are a whole bunch of instructions for each value which calculates the end $value. Basically I am working on image manipulation and trying to store pixel values in an array: 20 images, of 12,000 pixels each.

print_r($array)

if php

I see..

Try using a simple 2 dimensionnal array then serialize it, write it to a file, then read it, unserialize it and see if it works.

The problem may be elsewhere. Or it may be a maximum size problem. The only way to get over it is to find out what cause the problem by trying with simple data.

Regards,

G

Yea thats what i have been doing, but somewhere in the serialize/unserialize process my array is getting corrupted.

It looks like when reading in the string it stops at 3637 characters. Does anyone else know anything of this?

Hi,

never heard of this problem before. Try to get your file's content using fopen(), fread(), fclose().

Let me know it it worked.

Regards,

G

It's VERY easy:

$size_x = sizeof($array);
$size_y = sizeof($array[0]);


Thomas

Thanks for answering my origional questions qpl; this will def. help with my debugging.

Googled, I tried using fread but had a similar problem. What I ended up doing was:


$saveWeight2 = "<?php \n";
for($h=0;$h<$counter2;$h++)
{
for($i=0;$i<$counter1;$i++)
{
$random = rand(1,1000)/1000;
$saveWeight2.='$weight2[';
$saveWeight2.=$i;
$saveWeight2.='][';
$saveWeight2.=$h;
$saveWeight2.=']=';
$saveWeight2.=$random;
$saveWeight2.="; \n";
}
}
$saveWeight2.="?>";

I can then save that string to a .php textfile, and then retrieve the large array by using 'include weightfile.php'.