PHP Warning: Xdebug MUST be loaded as a Zend extension

Question

Here's the error I'm getting:

PHP Warning:  Xdebug MUST be loaded as a Zend extension in Unknown on line 0
PHP Warning:  Module 'xdebug' already loaded in Unknown on line 0

This is from my php.ini file:

; Directory in which the loadable extensions (modules) reside.
extension_dir = "/usr/local/lib/php/extensions/no-debug-non-zts-20090626"
zend_extension="/usr/local/IonCube/ioncube_loader_lin_5.3.so"
extension=xdebug.so
zend_extension="xdebug.so"

The file xdebug.so does exist at /usr/local/lib/php/extensions/no-debug-non-zts-20090626

I haven't made any changes and my server has a fresh install of cPanel. Anyone know what would be causing this to happen or see any issues with the information above?

Impropriate

Try to comment extension=xdebug.so – Lavinia

Did none of the search results for Xdebug MUST be loaded as a Zend extension help you? – Whitelivered

Just tried that and the error message changed to this Failed loading xdebug.so: xdebug.so: cannot open shared object file: No such file or directory – Impropriate

@Whitelivered I've looked through those suggestions, but most are telling you to just look to make sure it exists and in my case it is looking in the correct directory... – Impropriate

Answer 1

For anyone else who is having this issue, I updated this in my php.ini file and it fixed the error:

; Directory in which the loadable extensions (modules) reside.
extension_dir = "/usr/local/lib/php/extensions/no-debug-non-zts-20090626"
zend_extension = "/usr/local/IonCube/ioncube_loader_lin_5.3.so"
zend_extension = "/usr/local/lib/php/extensions/no-debug-non-zts-20090626/xdebug.so"
extension = "pdo.so"
extension = "pdo_sqlite.so"
extension = "pdo_mysql.so"
extension = "sqlite.so"

Impropriate

Only module extensions (those installed with extension=) are found within the extension_dir path. Engine extensions (installed with zend_extension) should use an absolute path. – Artel

This answer helped me. My issues was that I included xdebug as 'extension' prior, and again as 'zend_extension'. So just commenting 'extension' load fixed this issue – Figurehead

Answer 2

Just switch extension to zend_extension in your active php.ini file.

Scheller

I didn't even know this was a thing. Worked for me on Apache with PHP 7.3.8 on Windows 10. Thank you :) – Marinelli

Answer 3

The problem is the way IIS adds the extension related configuration to the php.ini file. To solve the problem simple replace in php.ini file,

extension=php_xdebug-2.5.0rc1-7.0-vc14-nts-x86_64.dll

with

zend_extension=php_xdebug-2.5.0rc1-7.0-vc14-nts-x86_64.dll

Although now IIS might not recognize xdebug extension as enabled, it is enabled and can be verified by checking the phpinfo() results.

Phene

Answer 4

First: verify that the output phpize is exactly the same the web /wizar show you.

Verify, after getting phpinfo() that xdebug had been installed correctly. Ctrl + f: xdebug. If not, go for the documentation https://xdebug.org/docs/install#configure-php and how to install using the console on your php verion.

Ventage

Answer 5

For those who have windows, just change the file by the location of the file where the extension is

Comstock

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