Add pcntl extension _php tips for PHP in Linux systems

PCNTL extensions can support multithreaded operations in PHP (Linux only)

The original need to recompile PHP back configrue hint plus--enable-pcntl

Since my PHP is installed using yum, I can't use the above method

Here's how to add an extension to PHP dynamically phpize

1, first look at the phpize command in the directory (PS: my directory/usr/bin/phpize)

If not found, perform the installation

Yum Install Php53_devel  (PS: Please note your version)

After the installation is complete. The Phpize command is generated

2, to php.net download the corresponding version of the PHP source file

Let's take php-5.3.17 for example, after decompression, into the corresponding module

CD ext/pcntl
#先执行phpize
/usr/bin/phpize
./configure--with-php-config=/usr/bin/php-config  (PS: Please specify the Php-config directory correctly
#编译, install make
&& do install

There was a mistake.

./configure compile normal, but make error
Error: ' Php_fe_end ' undeclared here (not in a function)

Workaround:

Source code error, enter php-5.3.17 directory

Sed-i ' s| php_fe_end| {null,null,null}| ' ./ext/**/*.c
Sed-i ' s| zend_mod_end| {null,null,null}| ' ./ext/**/*.c

Re-make && make install

3. After compiling, a pcntl.so file will be generated. In the PHP model directory

Edit/etc/php.ini, join

extension=pcntl.so

4, restart Apache

service httpd restart

5. Test whether the installation is successful

<?php
  Echo pcntl_fork ();
? >

Output: 23165