MySQL-What is the difference between two configurations when compiling a PHP configuration

When compiling PHP,

--with-Extension Library =dir

--enable-Extension Library

What is the difference between these two configurations

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When compiling PHP,

--with-Extension Library =dir

--enable-Extension Library

What is the difference between these two configurations

It is obvious that the values are different:
With can be empty after, that is, default value; can be a path; can be a function name
Enable cannot have a value, this is the case only enable and disable optional

The PHP manual mentions: http://www.php.net/manual/zh/install.pecl.static.php

Whether to use--enable-extname or--with-extname depends on the extension library. An extension library that typically does not require external library files uses--enable. To confirm, run after buildconf:$ ./configure --help | grep extname

--enable refers to the existing in the Ext directory,--WITH-XXX is another program, such as--with-mysql=/usr/local/mysql/--with-openssl=/usr/local/openssl.
PHP now has mysqlnd, can write--with-mysql=mysqlnd 、--with-mysqli=mysqlnd this.

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