note 96219 modified in book.array by thiago
| From: | thiago@php.net | Date: | Tue, 16 Feb 2010 00:45:47 +0000 |
| Subject: | note 96219 modified in book.array by thiago | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-165989@lists.php.net to get a copy of this message | ||
Be careful when adding elements to a numeric array.
I wanted to store some info about some items from a database and decided to use the record id as a
key.
<?php
$key=3000000000;
$DATA[$key]=true;
?>
This will create an array of 30 million elements and chances are, you will use up all memory with
these 2 lines
<?php
$key=3000000000;
$DATA["$key"]=true;
?>
This on the other hand will force the array to be an associative array and will only create the one
element
--was--
Be careful when adding elements to a numeric array.
I wanted to store some info about some items from a database and decided to use the record id as a
key.
$key=3000000000;
$DATA[$key]=true;
This will create an array of 30 million elements and chances are, you will use up all memory with
these 2 lines
$key=3000000000;
$DATA["$key"]=true;
This on the other hand will force the array to be an associative array and will only create the one
element
http://php.net/manual/en/book.array.php