php[tek] 2017: Atlanta

Building PHP for extension development

In a typical PHP installation, the need for high performance almost always results in optimization at the cost of debugging facilities. This is a reasonable tradeoff for production use, but when developing an extension it falls short. What we need is a build of PHP which will give us some hints what has gone wrong when something does.

The Zend Engine provides a memory manager which is capable of tracking memory leaks in extensions and providing detailed debugging information. This tracking is disabled by default, as is thread-safety. To turn them on, pass the --enable-debug and --enable-maintainer-zts options to configure, along with whatever options you typically use. For instructions on building PHP from source, see the instructions at Considérations générales sur l'installation. A typical configure line might look like this:

$ ./configure --prefix=/where/to/install/php --enable-debug --enable-maintainer-zts --enable-cgi --enable-cli --with-mysql=/path/to/mysql

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User Contributed Notes 1 note

rich dot d dot rich at gmail dot com
5 years ago
This may be obvious, but if you are installing PHP under a home directory, don't enter '--prefix=~/place'. Use the full form '--prefix=/home/fred/place'.

Otherwise, it will half work and cause problems (because the shell char gets expanded in some places and not others).
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