March 16, 2013

Fatal error: Allowed memory size, when using ip2long function

Question by user1941709

I am using the ip2Long function below,

function ip_range($start, $end) {
    $start = ip2long($start);
    $end = ip2long($end);
    return array_map('long2ip', range($start, $end) );

$range_one = " ";
$range_two = "";
print_r( ip_range($range_one, $range_two) );

But I get the following error:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to
allocate 32 bytes) in /home/site/public_html/path/checkrange.php on
line 6

Answer by Samuel Cook

$range_one is not considered a valid IP. If you remove the space off the end then this works for me:

$range_one = "";

To avoid this in the future, you should trim your values:

$start = ip2long(trim($start));
$end = ip2long(trim($end));

Answer by Starx

The is a space at the end of the variable.

$range_one = " ";
                        // ^ Remove this

Author: Nabin Nepal (Starx)

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