Output the current branch in your PHP application

Show_current_branch_in.php

<?php

	# Git branch output in PHP
	exec('git symbolic-ref HEAD', $output);
	$branch = end(explode('/', $output[0])));

exec('git symbolic-ref HEAD', $output);
$branch = end(explode('/', $output[0]));

This produces a Notice

$t = explode(...)
$branch = end($t);

to fix

just use

$branch = trim(shell_exec('git rev-parse --abbrev-ref HEAD'));

just use

$branch = trim(shell_exec('git branch --show-current'));

--show-current was not available in 2018, but going forward, it looks much nicer.

To get sub-module branch name or when multiple git repos are in use:

$path = 'path/to/folder/with/git/repo';
$branch = trim(shell_exec('cd "${PWD}' . $path . '"; git rev-parse --abbrev-ref HEAD'));