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Bug #21954 array_key_exists warns for large numeric keys
Submitted: 2003-01-29 16:40 UTC Modified: 2003-01-30 03:46 UTC
From: elnormo at hotmail dot com Assigned:
Status: Not a bug Package: Arrays related
PHP Version: 4.3.0 OS: RedHat Linux
Private report: No CVE-ID: None
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From: elnormo at hotmail dot com
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 [2003-01-29 16:40 UTC] elnormo at hotmail dot com 
Try this script:

<?php
	$a = array();
	$a[2163195907] = "hi";
	echo array_key_exists(2163195907,$a);
?>

PHP generates a warning (The first argument should be either a string or an integer). If I try this with smaller integers, the code works fine. If I convert the integer to a string (using strval), it also works fine.

Norman Elton

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 [2003-01-30 03:46 UTC] derick@php.net 
This is not a bug, the number you are using is NOT an integer because it's larger then 2^31-1 (the maximum integer value in PHP) and thus it will be converted to a float. Use
 
$a[(string)2163195907] = "hi";
echo array_key_exists((string)2163195907,$a);

and it should work fine.

Derick
 
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