n the examples shown, replace "X.Y" with your app's PHP version (for example, "5.4" or "7.0"). To install a PECL extension for multiple PHP versions, repeat the PECL extension installation for each PHP version.
The Xdebug extension provides debugging and profiling capabilities for PHP scripts.
Xdebug supports PHP 5.4, 5.5, 5.6, and 7.0. Xdebug does not yet support PHP 7.1.
Installing
To install this extension, run the following command as your server's root user:
sudo apt-get install gcc make autoconf libc-dev pkg-config sudo peclX.Y-sp install xdebug
Once installed, create a configuration file using one of the following commands run as root.
For PHP 5.5, 5.6, and 7.0:
sudo bash -c "echo zend_extension=xdebug.so > /etc/phpX.Y-sp/conf.d/xdebug.ini"
For PHP 5.4:
sudo bash -c "echo zend_extension=/opt/sp/php5.4/lib/php/extensions/no-debug-non-zts-20100525/xdebug.so > /etc/php5.4-sp/conf.d/xdebug.ini"
Finally, restart PHP by running this command as root:
sudo service phpX.Y-fpm-sp restart
Verifying the Installation
You can verify Xdebug is installed correctly by running the command
phpX.Y-sp -i | grep xdebug
If you installed Xdebug correctly, you will see the following:
/etc/phpX.Y-sp/conf.d/xdebug.ini, xdebug xdebug support => enabled xdebug.auto_trace => Off => Off xdebug.cli_color => 0 => 0 xdebug.collect_assignments => Off => Off xdebug.collect_includes => On => On xdebug.collect_params => 0 => 0 xdebug.collect_return => Off => Off xdebug.collect_vars => Off => Off xdebug.coverage_enable => On => On xdebug.default_enable => On => On xdebug.dump.COOKIE => no value => no value xdebug.dump.ENV => no value => no value xdebug.dump.FILES => no value => no value xdebug.dump.GET => no value => no value xdebug.dump.POST => no value => no value xdebug.dump.REQUEST => no value => no value xdebug.dump.SERVER => no value => no value xdebug.dump.SESSION => no value => no value xdebug.dump_globals => On => On xdebug.dump_once => On => On xdebug.dump_undefined => Off => Off xdebug.extended_info => On => On xdebug.file_link_format => no value => no value xdebug.idekey => no value => no value xdebug.max_nesting_level => 100 => 100 xdebug.overload_var_dump => On => On xdebug.profiler_aggregate => Off => Off xdebug.profiler_append => Off => Off xdebug.profiler_enable => Off => Off xdebug.profiler_enable_trigger => Off => Off xdebug.profiler_output_dir => /tmp => /tmp xdebug.profiler_output_name => cachegrind.out.%p => cachegrind.out.%p xdebug.remote_autostart => Off => Off xdebug.remote_connect_back => Off => Off xdebug.remote_cookie_expire_time => 3600 => 3600 xdebug.remote_enable => Off => Off xdebug.remote_handler => dbgp => dbgp xdebug.remote_host => localhost => localhost xdebug.remote_log => no value => no value xdebug.remote_mode => req => req xdebug.remote_port => 9000 => 9000 xdebug.scream => Off => Off xdebug.show_exception_trace => Off => Off xdebug.show_local_vars => Off => Off xdebug.show_mem_delta => Off => Off xdebug.trace_enable_trigger => Off => Off xdebug.trace_format => 0 => 0 xdebug.trace_options => 0 => 0 xdebug.trace_output_dir => /tmp => /tmp xdebug.trace_output_name => trace.%c => trace.%c xdebug.var_display_max_children => 128 => 128 xdebug.var_display_max_data => 512 => 512 xdebug.var_display_max_depth => 3 => 3
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