PhpDocumentor Install Memory Error
Run the following command to install PhpDocumentor:
peardev install --alldeps PhpDocumentor
Note that you must use 'peardev' instead of 'pear'. If you try to use 'pear' you will get a memory error:
PHP Fatal error: Allowed memory size of 8388608 bytes exhausted...
The 'peardev' command is for for memory-intensive operations.