diff --git a/src/_composer b/src/_composer
new file mode 100644
index 0000000..0ba9250
--- /dev/null
+++ b/src/_composer
@@ -0,0 +1,248 @@
+#compdef composer
+# ------------------------------------------------------------------------------
+# Description
+# -----------
+#
+#  Completion script for composer (https://getcomposer.org/).
+#
+# ------------------------------------------------------------------------------
+# Authors
+# -------
+#
+#  * loranger (https://github.com/loranger)
+#
+# ------------------------------------------------------------------------------
+
+_composer_global_options() {
+	_values : \
+		"--xml[To output help as XML]" \
+		"--format[To output help in other formats]:format:" \
+		"--raw[To output raw command help]" \
+		"(help,h)"{--help,-h}"[Display this help message.]" \
+		"(quite,q)"{--quiet,-q}"[Do not output any message.]" \
+		"--verbose[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]:Verbosity:(1 2 3)" \
+		"(v,vv,vvv)"{-v,-vv,-vvv}"[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]" \
+		"(version,V)"{--version,-V}"[Display this application version.]" \
+		"--ansi[Force ANSI output.]" \
+		"--no-ansi[Disable ANSI output.]" \
+		"(no-interaction,n)"{--no-interaction,-n}"[Do not ask any interactive question.]" \
+		"--profile[Display timing and memory usage information]" \
+		"(working-dir)"{--working-dir,-d}"[If specified, use the given directory as working directory.]:files:_files -/"
+}
+
+_composer_cmd() {
+	_values : \
+		"about[Short information about Composer]" \
+		"archive[Create an archive of this composer package]" \
+		"config[Set config options]" \
+		"create-project[Create new project from a package into given directory.]" \
+		"depends[Shows which packages depend on the given package]" \
+		"diagnose[Diagnoses the system to identify common errors.]" \
+		"dump-autoload[Dumps the autoloader]" \
+		"dumpautoload[Dumps the autoloader]" \
+		"help[Displays help for a command]" \
+		"init[Creates a basic composer.json file in current directory.]" \
+		"install[Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.]" \
+		"list[Lists commands]" \
+		"require[Adds required packages to your composer.json and installs them]" \
+		"run-script[Run the scripts defined in composer.json.]" \
+		"search[Search for packages]" \
+		"self-update[Updates composer.phar to the latest version.]" \
+		"selfupdate[Updates composer.phar to the latest version.]" \
+		"show[Show information about packages]" \
+		"status[Show a list of locally modified packages]" \
+		"update[Updates your dependencies to the latest version according to composer.json, and updates the composer.lock file.]" \
+		"validate[Validates a composer.json]" \
+		"*:options:_composer_global_options"
+}
+
+_composer_cmd_archive() {
+	_arguments : \
+		"(format,f)"{--format,-f}"[Format of the resulting archive: tar or zip (default: 'tar')]:format:(tar zip)" \
+		"--dir[Write the archive to this directory (default: '.')]:working dir:_files -/" \
+		":Package:" \
+		":Version:"
+}
+
+_composer_cmd_config() {
+	_arguments : \
+		"(global,g)"{--global,-g}"[Apply command to the global config file]" \
+		"(editor,e)"{--editor,-e}"[Open editor]" \
+		"--unset[Unset the given setting-key]" \
+		"(list,l)"{--list,-l}"[List configuration settings]" \
+		"(file,f)"{--file,-f}"[If you want to choose a different composer.json or config.json (default: 'composer.json')]:config:_files" \
+		":Setting key:" \
+		":Setting value:"
+}
+
+_composer_cmd_create-project() {
+	_arguments : \
+		"(stability,s)"{--stability,-s}"[Minimum-stability allowed (unless a version is specified). (default: 'stable')]:Stability:" \
+		"--prefer-source[Forces installation from package sources when possible, including VCS information.]" \
+		"--prefer-dist[Forces installation from package dist even for dev versions.]" \
+		"--repository-url[Pick a different repository url to look for the package.]" \
+		"--dev[Whether to install dependencies for development.]" \
+		"--no-custom-installers[Whether to disable custom installers.]" \
+		"--no-scripts[Whether to prevent execution of all defined scripts in the root package.]" \
+		"--no-progress[Do not output download progress.]" \
+		"--keep-vcs[Whether to prevent deletion vcs folder.]" \
+		":Package:" \
+		":Destination directory:_files -/" \
+		":Version:"
+}
+
+_composer_cmd_depends() {
+	_arguments : \
+		"--link-type[Link types to show (require, require-dev) (default: \['require','require-dev'\]) (multiple values allowed)]:Link types:(require require-dev)" \
+		":Package:"
+}
+
+_composer_cmd_dumpautoload() {
+	_arguments : \
+		"(optimize,o)"{--optimize,-o}"[Optimizes PSR0 packages to be loaded with classmaps too, good for production.]"
+}
+
+_composer_cmd_dump-autoload() {
+	_arguments : \
+		"*:args:_composer_cmd_dumpautoload"
+}
+
+_composer_cmd_help() {
+	_arguments : \
+		"(- 1 *):command:_composer_cmd"
+}
+
+_composer_cmd_init() {
+	_arguments : \
+		"--name[Name of the package]" \
+		"--description[Description of package]" \
+		"--author[Author name of package]" \
+		"--homepage[Homepage of package]" \
+		"--require[Package to require with a version constraint (e.g. foo/bar:1.0.0 or foo/bar=1.0.0 or \\\"foo/bar 1.0.0\\\")]" \
+		"--require-dev[Package to require for development with a version constraint (e.g. foo/bar:1.0.0 or foo/bar=1.0.0 or \\\"foo/bar 1.0.0\\\")]" \
+		"(stability,s)"{--stability,-s}"[Minimum stability]:Stability:(stable RC beta alpha dev)" \
+		"(license,l)"{--license,-l}"[License of package]"
+}
+
+_composer_cmd_install() {
+	_arguments : \
+		"--prefer-source[Forces installation from package sources when possible, including VCS information.]" \
+		"--prefer-dist[Forces installation from package dist even for dev versions.]" \
+		"--dry-run[Outputs the operations but will not execute anything (implicitly enables --verbose).]" \
+		"--dev[Enables installation of require-dev packages.]" \
+		"--no-dev[Disables installation of require-dev packages (enabled by default, only present for sanity).]" \
+		"--no-custom-installers[Disables all custom installers.]" \
+		"--no-scripts[Skips the execution of all scripts defined in composer.json file.]" \
+		"--no-progress[Do not output download progress.]" \
+		"--verbose[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]:Verbosity:(1 2 3)" \
+		"(v,vv,vvv)"{-v,-vv,-vvv}"[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]" \
+		"(optimize-autoloader,o)"{--optimize-autoloader,-o}"[Optimize autoloader during autoloader dump]"
+}
+
+_composer_cmd_list() {
+	_arguments : \
+		"--xml[To output help as XML]" \
+		"--format[To output help in other formats]:format:" \
+		"--raw[To output raw command help]" \
+		":Namespace:"
+}
+
+_composer_cmd_require() {
+	_arguments : \
+		"--dev[Add requirement to require-dev.]" \
+		"--prefer-source[Forces installation from package sources when possible, including VCS information.]" \
+		"--prefer-dist[Forces installation from package dist even for dev versions.]" \
+		"--no-progress[Do not output download progress.]" \
+		"--no-update[Disables the automatic update of the dependencies.]" \
+		":Packages (e.g. foo/bar\:1.0.0 or foo/bar=1.0.0 or \"foo/bar 1.0.0\"):" \
+}
+
+_composer_cmd_run-script() {
+	_arguments : \
+		"--dev[Sets the dev mode.]" \
+		"--no-dev[Disables the dev mode.]" \
+		":Script name:"
+}
+
+_composer_cmd_search() {
+	_arguments : \
+		"(only-name,N)"{--only-name,-N}"[Search only in name]" \
+		":Tokens to search for:"
+}
+
+_composer_cmd_show() {
+	_arguments : \
+		"(installed,i)"{--installed,-i}"[List installed packages only]" \
+		"(platform,p)"{--platform,-p}"[List platform packages only]" \
+		"(available,a)"{--available,-a}"[List available packages only]" \
+		"(self,s)"{--self,-s}"[Show the root package information]" \
+		"(name-only,N)"{--name-only,-N}"[List package names only]" \
+		":Package:" \
+		":Version:"
+}
+
+_composer_cmd_status() {
+	_arguments : \
+		"--verbose[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]:Verbosity:(1 2 3)" \
+		"(v,vv,vvv)"{-v,-vv,-vvv}"[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]"
+}
+
+_composer_cmd_update() {
+	_arguments : \
+		"--prefer-source[Forces installation from package sources when possible, including VCS information.]" \
+		"--prefer-dist[Forces installation from package dist even for dev versions.]" \
+		"--dry-run[Outputs the operations but will not execute anything (implicitly enables --verbose).]" \
+		"--dev[Enables installation of require-dev packages (enabled by default, only present for sanity).]" \
+		"--no-dev[Disables installation of require-dev packages.]" \
+		"--no-custom-installers[Disables all custom installers.]" \
+		"--no-scripts[Skips the execution of all scripts defined in composer.json file.]" \
+		"--no-progress[Do not output download progress.]" \
+		"--verbose[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]:Verbosity:(1 2 3)" \
+		"(v,vv,vvv)"{-v,-vv,-vvv}"[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]" \
+		"(optimize-autoloader,o)"{--optimize-autoloader,-o}"[Optimize autoloader during autoloader dump]" \
+		":Packages:"
+}
+
+_composer_cmd_validate() {
+	_arguments : \
+		":Json file:_files"
+}
+
+_composer() {
+	if (( CURRENT > 2)); then
+		cmd=${words[2]}
+		# Set the context for the subcommand.
+		curcontext="${curcontext%:*:*}:composer-$cmd"
+		# Narrow the range of words we are looking at to exclude 'composer'
+		(( CURRENT-- ))
+		shift words
+		# Run the completion for the subcommand
+		(( $+functions[_composer_cmd_$cmd] )) && _composer_cmd_$cmd
+	else
+		_arguments : \
+			"--xml[To output help as XML]" \
+			"--format[To output help in other formats]:format:" \
+			"--raw[To output raw command help]" \
+			"(help,h)"{--help,-h}"[Display this help message.]" \
+			"(quite,q)"{--quiet,-q}"[Do not output any message.]" \
+			"--verbose[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]:Verbosity:(1 2 3)" \
+			"(v,vv,vvv)"{-v,-vv,-vvv}"[Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug]" \
+			"(version,V)"{--version,-V}"[Display this application version.]" \
+			"--ansi[Force ANSI output.]" \
+			"--no-ansi[Disable ANSI output.]" \
+			"(no-interaction,n)"{--no-interaction,-n}"[Do not ask any interactive question.]" \
+			"--profile[Display timing and memory usage information]" \
+			"(working-dir)"{--working-dir,-d}"[If specified, use the given directory as working directory.]:files:_files -/" \
+			":command:_composer_cmd"
+	fi
+}
+
+_composer "$@"
+
+# Local Variables:
+# mode: Shell-Script
+# sh-indentation: 2
+# indent-tabs-mode: nil
+# sh-basic-offset: 2
+# End:
+# vim: ft=zsh sw=2 ts=2 et
\ No newline at end of file