WP Config set gives Error: Could not process the 'wp-config.php' transformation.

[naqirizvi]

Bug Report

• [x ] Yes, I reviewed the contribution guidelines.
• [x ] Yes, more specifically, I reviewed the guidelines on how to write clear bug reports.

Describe the current, buggy behavior
wp config set foo bar is not working as expected and gives output

Error: Could not process the 'wp-config.php' transformation.
Reason: Failed to update the config file.

However, the anchor text is correct.

/* Add any custom values between this line and the "stop editing" line. */

/* That's all, stop editing! Happy publishing. */

Expected Response:
Success: Added the constant 'foo' to the 'wp-config.php' file with the raw value 'bar'.

Environment:

• cPanel
• Softaculous
• WP-CLI 2.7.1
• Wordpress 6.2
• PHP 7.2,7.4,8.0

wp --info
OS:     Linux 3.10.0-962.3.2.lve1.5.42.el7.x86_64 #1 SMP Mon Nov 9 08:11:18 EST 2020 x86_64
Shell:  /usr/bin/bash
PHP binary:     /opt/alt/php74/usr/bin/php
PHP version:    7.4.33
php.ini used:   /opt/alt/php74/etc/php.ini
MySQL binary:   /bin/mysql
MySQL version:  mysql  Ver 15.1 Distrib 10.3.38-MariaDB, for Linux (x86_64) using readline 5.1
SQL modes:
WP-CLI root dir:        phar://wp-cli.phar/vendor/wp-cli/wp-cli
WP-CLI vendor dir:      phar://wp-cli.phar/vendor
WP_CLI phar path:       /home/cq60tjb
WP-CLI packages dir:    /home/cq60tjb/.wp-cli/packages/
WP-CLI cache dir:       /home/cq60tjb/.wp-cli/cache
WP-CLI global config:
WP-CLI project config:
WP-CLI version: 2.7.1

Provide a possible solution
Wp-config.php has the correct Anchor text. The issues are replicate able on a fresh install.

Provide additional context/Screenshots

When --raw is added the command works fine
wp config set foo bar --raw

[danielbachhuber]

Thanks for the report, @naqirizvi

I'm unable to reproduce the issue on my local machine:

$ wp config set foo bar
Success: Added the constant 'foo' to the 'wp-config.php' file with the value 'bar'.
$ wp cli info
OS:	Darwin 22.3.0 Darwin Kernel Version 22.3.0: Mon Jan 30 20:38:37 PST 2023; root:xnu-8792.81.3~2/RELEASE_ARM64_T6000 arm64
Shell:	/bin/zsh
PHP binary:	/opt/homebrew/bin/php
PHP version:	8.0.27
php.ini used:	/opt/homebrew/etc/php/8.0/php.ini
MySQL binary:	/opt/homebrew/bin/mysql
MySQL version:	mysql  Ver 8.0.32 for macos13.0 on arm64 (Homebrew)
SQL modes:
WP-CLI root dir:	/Users/danielbachhuber/projects/wp-cli-dev/wp-cli
WP-CLI vendor dir:	/Users/danielbachhuber/projects/wp-cli-dev/wp-cli/vendor
WP_CLI phar path:
WP-CLI packages dir:	/Users/danielbachhuber/wp-cli/packages/
WP-CLI cache dir:	/Users/danielbachhuber/.wp-cli/cache
WP-CLI global config:	/Users/danielbachhuber/.wp-cli/config.yml
WP-CLI project config:	/Users/danielbachhuber/projects/vanilla/wp-cli.yml
WP-CLI version:	2.8.0-alpha

A few thoughts, to potentially help move this along:

• Can you see if it reproduces for you in another environment?
• Can you share your full wp-config.php (with any secrets nulled out) so I can inspect it?
• It looks like there are some failures in the underlying wp-config-transformer package that might be related https://github.com/wp-cli/wp-config-transformer

Feel free to stop by the #cli channel on WordPress.org Slack if you'd like help debugging further.