Be careful with nested FOR statements Mar07 '05
Something I just learned today – the HARD way, mind you...
Unless I was doing something completely wrong – I noticed, in PHP, that you can’t issue a FOR statement within another FOR statement, and use the same temporary variable for each.
It will just cause your page to hang, and never load.
Here is a brief sample of the syntax I had:
for ($i=0; $i<$image_share_numrows; $i++)
{
$image_share_row = mysql_fetch_array($image_share_result);
if ($image_share_row[4] == 1)
{
for ($i=0; $i<$specials_numrows; $i++)
{
...
}
}
}
Notice the variables in white. They can’t (or so it seems) be the same.
To correct the problem, I just changed the variables in the nested FOR statement to a different letter – k, for instance.
Categories: PHP 
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