Danny Bembibre (dbembibre) Crawlability Inc.

eAccelerator_get and eAccelerator_put functions are now disabled by default. These functions have been disabled because when leaving them on without any precautions these functions can be used for a local DoS attack by keep putting data in shared memory.

http://eaccelerator.net/ticket/37

The correct way to enable it is configure with the following atribute

Code:

--with-eaccelerator-shared-memory

Configure and install secuence

Code:

export PHP_PREFIX="/usr"
 
$PHP_PREFIX/bin/phpize
 
./configure --enable-eaccelerator=shared --with-php-config=$PHP_PREFIX/bin/php-config --with-eaccelerator-shared-memory
 
make
 
make install

Test page with functions and cached data

PHP Code:

<?php
$rfunc = get_extension_funcs( 'eaccelerator' );
print_r($rfunc);
 
function ea ($str)
{
        eaccelerator_put("testkey", $str);
        for ($i = 0; $i < 1e5; $i++)
        {
                $r = eaccelerator_get("testkey");
        }
        return $r;
}
 
$str = str_repeat("1234567890", 1024); // 10 KB
$r = ea($str);
echo strlen($r);
 
?>

Output from my server

PHP Code:

Array ( 
[0] => eaccelerator_put 
[1] => eaccelerator_get 
[2] => eaccelerator_rm 
[3] => eaccelerator_gc 
[4] => eaccelerator_lock 
[5] => eaccelerator_unlock 
[6] => eaccelerator_caching 
[7] => eaccelerator_optimizer 
[8] => eaccelerator_clear 
[9] => eaccelerator_clean 
[10] => eaccelerator_info 
[11] => eaccelerator_purge 
[12] => eaccelerator_cached_scripts 
[13] => eaccelerator_removed_scripts 
[14] => eaccelerator_list_keys 
[15] => eaccelerator_encode 
[16] => eaccelerator_load 
[17] => _eaccelerator_loader_file 
[18] => _eaccelerator_loader_line 
) 
 
10240 


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