I installed composer and could not find the specified module php_pdo.dll.

Question

php.ini has been opened, and there is also a pdo module in phpinfo

Answer 1

There is no such dll, that’s what the error means

Answer 2

Have you used the dll compiled under x64 for x86

Answer 3

After a series of efforts, it was finally solved successfully. I added the comma in front of extension=php_pdo.dll in php.ini and commented out this statement. At the same time, the phpinfo page also shows that the pdo and pdo_mysql modules are loaded normally. composer also runs normally.