fattain-naime/cwp-superpowers/cwp-php

Name: cwp-php
Author: fattain-naime

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This skill should be used when the user asks to "switch PHP version", "install PHP extensions", "configure PHP-FPM", "use PHP Selector", "compile PHP", "fix PHP errors", "disable PHP functions", "set up open_basedir", "configure PHP Defender", "rebuild PHP-FPM", "set PHP upload limit", "manage multiple PHP versions", or needs to manage PHP versions, extensions, or configurations on a CWP server.

Install

npx vskill@latest install fattain-naime/cwp-superpowers/cwp-php

SKILL.md

CWP PHP Management

Manage PHP versions, extensions, and configurations on CWP servers. Handle PHP Switcher, PHP Selector, PHP-FPM Selector, and security hardening for PHP.

PHP Version Management Tools

Use three distinct tools for PHP version management:

Tool	Behavior	Versions	Use Case
PHP Switcher	ONE default PHP for all users	5.3-8.1+	Simple setups
PHP Selector	Multiple versions via .htaccess	4.4-8.1	Per-folder version
PHP-FPM Selector	Per-domain via Domain Conf	5.3-8.1+	Per-domain (CWP Pro)

PHP Switcher

Sets a single default PHP version compiled from source for the entire server.

bash

# Rebuild PHP via Switcher
/scripts/phpfpm_rebuild_user_conf
 
# Compile log location
tail -f /var/log/php-rebuild.log

PHP Selector

Allows multiple PHP versions simultaneously. Users select versions per folder via .htaccess.

apache

# Per-folder PHP version via .htaccess
AddHandler application/x-httpd-php56 .php    # PHP 5.6
AddHandler application/x-httpd-php74 .php    # PHP 7.4
AddHandler application/x-httpd-php81 .php    # PHP 8.1

PHP-FPM Selector (CWP Pro)

Per-domain PHP-FPM configuration via the Domain Conf panel.

Configuration Paths

Component	Path
Main PHP php.ini	`/usr/local/php/php.ini`
Main PHP config dir	`/usr/local/php/php.d/`
Per-user php.ini	`/home/USERNAME/php.ini`
Selector PHP binaries	`/opt/alt/php{VERSION}/usr/bin/php`
Selector php.ini	`/opt/alt/php{VERSION}/usr/php/php.ini`
FPM user configs	`/opt/alt/php-fpm{VERSION}/usr/etc/php-fpm.d/users/USERNAME.conf`
PHP Switcher configs	`/usr/local/cwpsrv/htdocs/resources/conf/el{7,8}/php_switcher/`
Compile log	`/var/log/php-rebuild.log`
PHP Defender rules	`/usr/local/cwp/.conf/phpdefender/rules/`

PHP Version Matrix

PHP Version	Switcher	Selector	FPM Selector
5.3 - 5.6	Yes	Yes	Yes
7.0 - 7.4	Yes	Yes	Yes
8.0 - 8.1+	Yes	Yes	Yes
4.4	No	Yes	No

Detect Installed PHP Versions

PHP versions vary by server. Detect what's actually installed:

bash

# List all installed PHP Selector versions
ls /opt/alt/ | grep php
 
# Check system default PHP
php -v 2>/dev/null | head -1
 
# Check specific version (replace VERSION)
/opt/alt/php83/usr/bin/php -v 2>/dev/null | head -1
 
# List PHP-FPM services
systemctl list-units --type=service | grep php-fpm
 
# Find PHP-FPM service name (varies by version)
for svc in php-fpm php83-php-fpm php-fpm83 php-fpm81 php-fpm74; do
    systemctl is-active "$svc" 2>/dev/null && echo "$svc is active" || true
done

Common Operations

Check Active PHP Version

bash

# System default
php -v
 
# Detect installed Selector versions
for dir in /opt/alt/php*/usr/bin/php; do
    [ -f "$dir" ] && echo "$dir: $($dir -v 2>/dev/null | head -1)"
done
 
# Check loaded modules
php -m
 
# Check PHP configuration
php --ini

Install PHP Extensions

Install extensions via:

CWP Admin -> PHP Selector -> Toggle extensions
Recompile PHP with desired flags
Install from Remi repository

bash

# Install intl extension from Remi
yum install php-intl
 
# Install ImageMagick
/scripts/install_imagick

Rebuild PHP-FPM

bash

# Rebuild all PHP-FPM configurations
/scripts/phpfpm_rebuild_user_conf
 
# Restart PHP-FPM (service name varies by version)
# Try common service names:
for svc in php-fpm php83-php-fpm php-fpm83 php-fpm81 php-fpm74; do
    if systemctl is-active "$svc" 2>/dev/null; then
        systemctl restart "$svc"
        echo "Restarted $svc"
        break
    fi
done
 
# Or restart via CWP API
/scripts/phpfpm_service_manage restart

Set Upload Limits

bash

# Increase upload file size limit
/scripts/php_big_file_upload

Or manually edit php.ini:

ini

upload_max_filesize = 256M
post_max_size = 256M
max_execution_time = 300
max_input_time = 300
memory_limit = 512M

PHP Security

Disable Dangerous Functions

Disable functions that enable remote code execution:

bash

# PHP Switcher
echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /usr/local/php/php.d/disabled_function.ini
 
# PHP-FPM Selector (restart required)
echo "disable_functions = exec, system, popen, proc_open, shell_exec, passthru, show_source" > /opt/alt/php-fpm{VERSION}/usr/php/php.d/disabled_function.ini
service php-fpm{VERSION} restart

PHP open_basedir

Restrict file access per user to prevent directory traversal. For detailed open_basedir configuration and security hardening, see the cwp-security skill.

bash

# Per-user (recommended)
echo "open_basedir = /home/USERNAME:/tmp:/var/tmp:/usr/local/lib/php/" > /home/USERNAME/php.ini
chown root.root /home/USERNAME/php.ini
chmod 555 /home/USERNAME/php.ini

PHP Defender (Snuffleupagus)

Use Snuffleupagus as the PHP security module:

Component	Path
Configuration	`/usr/local/cwp/.conf/phpdefender/`
Rules	`/usr/local/cwp/.conf/phpdefender/rules/`
Module	`/opt/alt/php-fpm{VERSION}/usr/lib/php/extensions/no-debug-non-zts-*/snuffleupagus.so`

Troubleshooting

Issue	Solution
PHP installation failing	Need 1.5-2GB free RAM, verify DNS resolver
"No Loader installed"	`sh /scripts/update_ioncube`
intl extension missing	Recompile PHP with intl or install from Remi repo
suPHP 500 error	Fix ownership: `chown -R USER:USER /home/USER/public_html/*`
FPM socket errors	Rebuild configs: `/scripts/phpfpm_rebuild_user_conf`
Compilation timeout	Increase swap space, ensure 2GB+ RAM available

Diagnostic Commands

bash

# Check PHP-FPM pools
ls /opt/alt/php-fpm*/usr/etc/php-fpm.d/users/
 
# View FPM error log
tail -f /opt/alt/php-fpm81/var/log/php-fpm-error.log
 
# Check PHP extensions per version
/opt/alt/php81/usr/bin/php -m
 
# Verify open_basedir
php -i | grep open_basedir
 
# Check disable_functions
php -i | grep "disable_functions"

Additional Resources

references/php-switcher.md -- PHP Switcher compilation and version management
references/php-selector.md -- PHP Selector multi-version configuration
references/php-security.md -- Complete PHP hardening guide
references/php-fpm.md -- PHP-FPM pool configuration and tuning

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Source

SKILL.md in the repositoryCheckingskills/cwp-php/SKILL.md

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