Question

HI, I upload my php testing script to online vps server just now. The script used to parse a big size XML file(about 4M, 7000Lines). But my IE explorer show the online error message below.

Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 77 bytes) in /var/www/test/result/index.php on line 26

I am sure I already tested the php script on localhost successfully.

Is there any configuration need be enable/modify on my VPS? Such as php.ini or some setting for apache server? I just verified there are about 200M memory usage are avaliable for my VPS. How can I fix this?

......
function startElementHandler ($parser,$name,$attrib){
    global $usercount;
    global $userdata;
    global $state; // Line #26; 
    //Debug
    //print "name is: ".$name."\n";
    switch ($name) {
        case $name=="_ID" : {
        $userdata[$usercount]["first"] = $attrib["FIRST"];
        $userdata[$usercount]["last"] = $attrib["LAST"];
        $userdata[$usercount]["nick"] = $attrib["NICK"];
        $userdata[$usercount]["title"] = $attrib["TITLE"];
        break;
        }

        ......

        default : {$state=$name;break;}
    }
}

Answer 1

Your PHP configuration is limiting PHP to only 16 megabytes of memory. You need to modify the memory_limit configuration directive in php.ini to increase it.

Look for the line in php.ini that looks like this:

memory_limit = 16M

…and change to to a large value (16M = 16 megabytes, you could increase it to something like 64M for 64 megabytes, et cetera). If you can’t find any line like that, add it.

If you prefer to only increase it on a per-script basis, you can also use ini_set() to change the value for that script only.