php-config

provides information about PHP's compile-time configuration

TLDR

Show PHP include directory

$ php-config --include-dir

Show extension directory

$ php-config --extension-dir

Show configure options

$ php-config --configure-options

Show PHP version

$ php-config --version

DESCRIPTION

php-config provides information about PHP's compile-time configuration. Essential for building PHP extensions and modules.

PARAMETERS

--prefix

Installation prefix.

--includes

Include paths for compiling.

--ldflags

Linker flags.

--libs

Libraries.

--extension-dir

Extension installation path.

--include-dir

Header files directory.

--php-binary

Path to php binary.

--configure-options

Configure options used.

--version

PHP version.

Use in Makefile

INCLUDES = $(shell php-config --includes)
LDFLAGS = $(shell php-config --ldflags)

Check installed features

php-config --configure-options | tr ' ' '\n' | grep enable

Build extension with phpize

phpize
./configure --with-php-config=/usr/bin/php-config
make

$
# OUTPUT EXAMPLE

$ php-config --version
8.2.0
$ php-config --extension-dir
/usr/lib/php/20220829

$
# CAVEATS

Output varies by PHP installation. Multiple php-config for multiple PHP versions. Essential for extension development.

# HISTORY

php-config is part of the **PHP** distribution, providing build configuration information since PHP 4.

# SEE ALSO

phpize(1), php(1), pecl(1)