{"id":73480,"date":"2023-10-04T09:02:10","date_gmt":"2023-10-04T08:02:10","guid":{"rendered":"https:\/\/kinsta.com\/fr\/?p=73480&#038;preview=true&#038;preview_id=73480"},"modified":"2023-10-05T07:10:03","modified_gmt":"2023-10-05T06:10:03","slug":"installer-composer","status":"publish","type":"post","link":"https:\/\/kinsta.com\/fr\/blog\/installer-composer\/","title":{"rendered":"Comment installer Composer sur Windows, macOS et Linux"},"content":{"rendered":"<p>Si vous connaissez le langage de programmation PHP, vous avez probablement utilis\u00e9 des biblioth\u00e8ques <a href=\"https:\/\/kinsta.com\/fr\/blog\/qu-est-ce-que-php\/\">PHP<\/a> pour rendre votre code plus simple et plus facile \u00e0 g\u00e9rer. Composer est un outil open source utile que tout d\u00e9veloppeur peut utiliser pour g\u00e9rer ces d\u00e9pendances et biblioth\u00e8ques. De nombreux frameworks bien connus, comme <a href=\"https:\/\/kinsta.com\/fr\/blog\/installer-laravel\/\">Laravel<\/a> et <a href=\"https:\/\/kinsta.com\/fr\/blog\/wordpress-vs-drupal\/\">Drupal<\/a>, ont des processus de d\u00e9veloppement qui commencent par l&rsquo;installation de Composer.<\/p>\n<p>Voici comment ajouter Composer \u00e0 votre environnement de d\u00e9veloppement sous Windows, Linux et macOS et comment d\u00e9ployer une application PHP bas\u00e9e sur Composer sur une plateforme d&rsquo;h\u00e9bergement comme celle de Kinsta.<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2>Qu&rsquo;est-ce que Composer ?<\/h2>\n<p><a href=\"https:\/\/getcomposer.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">Composer<\/a> est responsable de la gestion des biblioth\u00e8ques par projet. Il peut \u00eatre install\u00e9 directement dans le r\u00e9pertoire du projet, ou il peut \u00eatre install\u00e9 globalement et accessible depuis n&rsquo;importe quel endroit du syst\u00e8me. Il vous permet de d\u00e9clarer les biblioth\u00e8ques dont le code d\u00e9pend. Il d\u00e9termine \u00e9galement la version des paquets n\u00e9cessaires et les installe pour vous.<\/p>\n<p>Les exigences de chaque projet sont d\u00e9clar\u00e9es dans un fichier JSON (nomm\u00e9 <strong>composer.json<\/strong>), ce qui permet \u00e0 Composer d&rsquo;\u00e9valuer quelle version de paquet correspond le mieux \u00e0 la d\u00e9pendance d&rsquo;une application. Cela rationalise le processus de d\u00e9veloppement, ce qui signifie qu&rsquo;un d\u00e9veloppeur peut consacrer plus de temps \u00e0 la construction et \u00e0 l&rsquo;am\u00e9lioration de son application principale.<\/p>\n<h2>Instructions d&rsquo;installation de Composer<\/h2>\n<p>Pour travailler avec Composer, vous devez <a href=\"https:\/\/kinsta.com\/fr\/blog\/installer-php\/\">installer PHP<\/a> sur votre syst\u00e8me.<\/p>\n<p>En fonction de votre configuration, vous disposez de diff\u00e9rentes options pour installer Composer, chacune impliquant des \u00e9tapes l\u00e9g\u00e8rement diff\u00e9rentes. Les sections suivantes expliquent comment installer Composer sur les syst\u00e8mes d&rsquo;exploitation suivants :<\/p>\n<ul>\n<li>Linux<\/li>\n<li>Windows<\/li>\n<li>macOS<\/li>\n<\/ul>\n<h3>Installation de Composer sous Linux<\/h3>\n<p>Composer peut \u00eatre install\u00e9 \u00e0 l&rsquo;aide du terminal sous Linux. Pour ce tutoriel, vous utiliserez <a href=\"https:\/\/kinsta.com\/fr\/blog\/verifier-votre-version-de-ubuntu\/\">Ubuntu<\/a> comme exemple. Si vous utilisez une autre distribution Linux, suivez les instructions de t\u00e9l\u00e9chargement de Composer fournies par le site web de cette distribution.<\/p>\n<p>Pour installer Composer sur Ubuntu, t\u00e9l\u00e9chargez d&rsquo;abord Composer depuis son site web :<\/p>\n<pre><code class=\"language-bash\">php -r \"copy('https:\/\/getcomposer.org\/installer', 'composer-setup.php');\"<\/code><\/pre>\n<p>Vous pouvez maintenant proc\u00e9der \u00e0 l&rsquo;installation locale ou globale de Composer sur votre syst\u00e8me.<\/p>\n<p>Ex\u00e9cutez la commande suivante pour une installation locale :<\/p>\n<pre><code class=\"language-bash\">php composer-setup.php<\/code><\/pre>\n<p>En installant Composer localement, vous pouvez vous assurer que le projet PHP est compatible avec la version de Composer que vous avez install\u00e9e. Cela permet d&rsquo;\u00e9viter les probl\u00e8mes de compatibilit\u00e9 et de s&rsquo;assurer que votre projet PHP fonctionne correctement sur une plateforme d&rsquo;h\u00e9bergement comme Kinsta.<\/p>\n<p>Alternativement, les commandes suivantes installent Composer globalement, ce qui permet au gestionnaire de d\u00e9pendances de s&rsquo;ex\u00e9cuter n&rsquo;importe o\u00f9 dans le syst\u00e8me sans sp\u00e9cifier le chemin complet :<\/p>\n<pre><code class=\"language-bash\">php composer-setup.php --install-dir=\/usr\/local\/bin --filename=composer<\/code><\/pre>\n<p>Apr\u00e8s avoir termin\u00e9 l&rsquo;installation en utilisant la m\u00e9thode choisie, supprimez le programme d&rsquo;installation de votre ordinateur en utilisant les commandes suivantes :<\/p>\n<pre><code class=\"language-bash\">php -r \"unlink('composer-setup.php');\"<\/code><\/pre>\n<p>Enfin, ex\u00e9cutez la commande suivante dans votre terminal pour tester si Composer a bien \u00e9t\u00e9 install\u00e9 :<\/p>\n<pre><code class=\"language-bash\">composer<\/code><\/pre>\n<p>Lorsque vous ex\u00e9cutez Composer sans aucun argument, l&rsquo;aide du programme s&rsquo;affiche et commence comme ceci :<\/p>\n<figure style=\"width: 1040px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/09\/composer-help-screen-after-install.png\" alt=\"Exemple d'affichage de l'aide de Composer.\" width=\"1040\" height=\"478\"><figcaption class=\"wp-caption-text\">Exemple d&rsquo;affichage de l&rsquo;aide de Composer.<\/figcaption><\/figure>\n<h3>Installation de Composer sous Windows<\/h3>\n<p>L&rsquo;installation de Composer sous Windows est relativement simple. Ouvrez votre navigateur et acc\u00e9dez au <a href=\"https:\/\/getcomposer.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">site web de Composer<\/a>, puis cliquez sur le bouton \u00ab <strong>Getting Started<\/strong> \u00bb.<\/p>\n<p>Dans la table des mati\u00e8res, acc\u00e9dez \u00e0 la section <strong>Utilisation du programme d&rsquo;installation<\/strong> sous l&rsquo;intitul\u00e9 <strong>Installation &#8211; Windows<\/strong>.<\/p>\n<p>Cliquez sur le lien <strong>Composer-Setup.exe<\/strong> pour t\u00e9l\u00e9charger le programme d&rsquo;installation :<\/p>\n<figure style=\"width: 890px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/09\/download-windows-composer-installer.png\" alt=\"Localisation du programme d'installation pour Windows sur le site officiel de Composer.\" width=\"890\" height=\"286\"><figcaption class=\"wp-caption-text\">Localisation du programme d&rsquo;installation pour Windows sur le site officiel de Composer.<\/figcaption><\/figure>\n<p>Ex\u00e9cutez le programme d&rsquo;installation et suivez les instructions pour installer Composer. Apr\u00e8s l&rsquo;installation, vous pouvez v\u00e9rifier que tout fonctionne en ouvrant votre invite de commande et en saisissant ce qui suit :<\/p>\n<pre><code class=\"language-bash\">composer<\/code><\/pre>\n<p>Vous devriez voir une liste des commandes Composer disponibles, ce qui signifie que vous avez bien install\u00e9 Composer dans Windows.<\/p>\n<h3>Installation de Composer sur macOS<\/h3>\n<p>Vous pouvez installer Composer sur macOS en ouvrant le terminal et en suivant les instructions ci-dessous.<\/p>\n<p>Tout d&rsquo;abord, t\u00e9l\u00e9chargez le programme d&rsquo;installation de Composer :<\/p>\n<pre><code class=\"language-bash\">sudo php -r \"copy('https:\/\/getcomposer.org\/installer','composer-setup.php');\"<\/code><\/pre>\n<p>Ensuite, ex\u00e9cutez le programme d&rsquo;installation pour une installation locale :<\/p>\n<pre><code class=\"language-bash\">php composer-setup.php<\/code><\/pre>\n<p>Ensuite, supprimez le fichier d&rsquo;installation apr\u00e8s l&rsquo;installation :<\/p>\n<pre><code class=\"language-bash\">php -r \"unlink('composer-setup.php');\"<\/code><\/pre>\n<p>Enfin, ex\u00e9cutez Composer pour v\u00e9rifier si l&rsquo;installation s&rsquo;est d\u00e9roul\u00e9e correctement ou non :<\/p>\n<pre><code class=\"language-bash\">composer<\/code><\/pre>\n<p><strong>Note :<\/strong> Vous pouvez \u00e9galement installer Composer globalement en sp\u00e9cifiant manuellement un r\u00e9pertoire d&rsquo;installation qui se trouve dans votre PATH :<\/p>\n<pre><code class=\"language-bash\">php composer-setup.php --install-dir=\/usr\/local\/bin --filename=composer<\/code><\/pre>\n<h2>D\u00e9ployer des applications bas\u00e9es sur Composer sur Kinsta<\/h2>\n<p>Le service d&rsquo;<a href=\"https:\/\/sevalla.com\/application-hosting\/\">h\u00e9bergement d&rsquo;applications<\/a> de Kinsta peut d\u00e9ployer votre projet PHP \u00e0 partir de votre fournisseur Git pr\u00e9f\u00e9r\u00e9 (<a href=\"https:\/\/docs.sevalla.com\/applications\/git\/bitbucket#grant-access-to-the-kinsta-bitbucket-application\">Bitbucket<\/a>, <a href=\"https:\/\/docs.sevalla.com\/applications\/git\/github#authenticate-and-authorize\">GitHub<\/a> ou <a href=\"https:\/\/docs.sevalla.com\/applications\/git\/gitlab#authorize-the-kinsta-gitlab-application\">GitLab<\/a>), en installant les modules d\u00e9pendants sp\u00e9cifi\u00e9s dans votre fichier <strong>composer.json<\/strong>.<\/p>\n<p>Vous pouvez cr\u00e9er un compte d&rsquo;h\u00e9bergement chez nous sans risque en vous inscrivant dans le <a href=\"https:\/\/kinsta.com\/fr\/mykinsta\/\">tableau de bord MyKinsta<\/a>. Vous pouvez vous entra\u00eener \u00e0 d\u00e9ployer une application bas\u00e9e sur Composer en copiant l&rsquo;application de d\u00e9marrage <a href=\"https:\/\/github.com\/kinsta\/hello-world-php\" target=\"_blank\" rel=\"noopener noreferrer\">Hello World &#8211; PHP<\/a> de Kinsta et en la t\u00e9l\u00e9verseant sur votre propre compte chez un fournisseur Git.<\/p>\n<p>Une fois que votre application PHP est disponible dans votre propre compte Git, vous pouvez suivre les \u00e9tapes pour <a href=\"https:\/\/docs.sevalla.com\/applications\/get-started\/add-an-application\">ajouter une application<\/a> dans MyKinsta. Cela inclut l&rsquo;autorisation de MyKinsta \u00e0 se connecter \u00e0 votre fournisseur Git et la configuration de votre environnement de construction :<\/p>\n<figure id=\"attachment_162805\" aria-describedby=\"caption-attachment-162805\" style=\"width: 901px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-162805 size-full\" title=\"Configure your application's build environment.\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/08\/add-application-build-environment-3.png\" alt=\"Configurez l'environnement de construction de votre application.\" width=\"901\" height=\"752\"><figcaption id=\"caption-attachment-162805\" class=\"wp-caption-text\">Configurez l&rsquo;environnement de construction de votre application.<\/figcaption><\/figure>\n<p>Kinsta configure automatiquement un serveur web Apache qui sert votre fichier <strong>index.php<\/strong> depuis le r\u00e9pertoire principal de votre application.<\/p>\n<h2>R\u00e9sum\u00e9<\/h2>\n<p>Dans cet article, vous avez appris \u00e0 conna\u00eetre Composer et \u00e0 l&rsquo;installer sur Windows, Linux et macOS. Vous avez \u00e9galement vu comment vous pouvez facilement d\u00e9ployer vos applications bas\u00e9es sur Composer sur la plateforme d&rsquo;h\u00e9bergement d&rsquo;applications Kinsta.<\/p>\n<p>Nous avons des <a href=\"https:\/\/docs.sevalla.com\/templates\/overview\">exemples de d\u00e9marrage rapide<\/a> pour un certain nombre d&rsquo;applications bas\u00e9es sur PHP et pour une vari\u00e9t\u00e9 d&rsquo;autres <a href=\"https:\/\/docs.sevalla.com\/applications\/reference\/faqs\">langages de programmation web<\/a> courants.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Si vous connaissez le langage de programmation PHP, vous avez probablement utilis\u00e9 des biblioth\u00e8ques PHP pour rendre votre code plus simple et plus facile \u00e0 g\u00e9rer. &#8230;<\/p>\n","protected":false},"author":301,"featured_media":73481,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[],"topic":[1020],"class_list":["post-73480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","topic-outils-developpement-web"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.6 (Yoast SEO v24.6) - 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