Allowed memory exhausted 

Symptom 

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 785 bytes) in /usr/share/pear/symfony/util/sfToolkit.class.php on line 383

Solution Synopsis 

Memory problem when installing symfony via PEAR http://www.symfony-project.org/trac/wiki/SymfonyFAQ#MemoryproblemwheninstallingsymfonyviaPEAR

$ grep memory_limit /etc/php.ini
memory_limit = 8M      ; Maximum amount of memory a script may consume (8MB)
# increase it then
/etc/init.d/httpd restart

documented on: 2007.02.23