Error compiling php-5.6, xml2-config not found

Compiling PHP-5.6 on CentOS today

CD php-5.6. /configure--PREFIX=/USR/LOCAL/PHP5. 6/--with-apxs2=/usr/local/apache. 2.2/bin/apxs

Return Error:

checking libxml2 install dir ... no    for xml2-config path ...   CONFIGURE:ERROR:XML2

Said it was libxml2 not installed, but with Yum installation found that has been installed

[email protected] process]# Yum install libxml2  Loaded plugins:fastestmirror  from  cached hostfile  Setting up Install Process  Package LIBXML2-2.7. 6-el6_5. 2   do

Check the data and found that the original need to install Libxml2-devel, the installation command again

Error compiling php-5.6, xml2-config not found