Download your php complete source version(should be precise version number) first link is : http://www.php.net/releases/ check by phpinfo() to know your php version --------------------------------------------------- extract your tar you will got folder name like php5-x.x.x --------------------------------------------------- run following lines in terminal
cd php5-x.x.x/ext/pcntl phpize ./configure make cp modules/pcntl.so /usr/lib64/php/modules/ echo "extension=pcntl.so" > /etc/php.d/pcntl.ini service httpd restart