{"id":120,"date":"2017-09-11T09:30:01","date_gmt":"2017-09-11T07:30:01","guid":{"rendered":"https:\/\/numa-bord.com\/miniblog\/?p=120"},"modified":"2018-01-13T19:41:16","modified_gmt":"2018-01-13T18:41:16","slug":"php-calcul-de-distance-entre-2-coordonnees-gps-latitude-longitude","status":"publish","type":"post","link":"https:\/\/numa-bord.com\/miniblog\/php-calcul-de-distance-entre-2-coordonnees-gps-latitude-longitude\/","title":{"rendered":"PHP : Calcul de la distance entre 2 coordonn\u00e9es GPS (latitude, longitude)"},"content":{"rendered":"

La fonction toute pr\u00eate afin de pouvoir la retrouver facilement, pas plus d’explications, c’est des maths, \u00e7a pique la t\u00eate !<\/p>\n

class<\/span> Misc {<\/span>
\n    \/**
\n     * Retourne la distance en metre ou kilometre (si $unit = 'k') entre deux latitude et longitude fournit
\n     *\/<\/span>
\n    public<\/span> static function<\/span> distance(<\/span>$lat1<\/span>,<\/span> $lng1<\/span>,<\/span> $lat2<\/span>,<\/span> $lng2<\/span>,<\/span> $unit<\/span> =<\/span> 'k'<\/span>)<\/span> {<\/span>
\n        $earth_radius<\/span> =<\/span> 6378137<\/span>;<\/span>   \/\/ Terre = sph\u00e8re de 6378km de rayon<\/span>
\n        $rlo1<\/span> =<\/span> deg2rad<\/span><\/a>(<\/span>$lng1<\/span>)<\/span>;<\/span>
\n        $rla1<\/span> =<\/span> deg2rad<\/span><\/a>(<\/span>$lat1<\/span>)<\/span>;<\/span>
\n        $rlo2<\/span> =<\/span> deg2rad<\/span><\/a>(<\/span>$lng2<\/span>)<\/span>;<\/span>
\n        $rla2<\/span> =<\/span> deg2rad<\/span><\/a>(<\/span>$lat2<\/span>)<\/span>;<\/span>
\n        $dlo<\/span> =<\/span> (<\/span>$rlo2<\/span> -<\/span> $rlo1<\/span>)<\/span> \/<\/span> 2<\/span>;<\/span>
\n        $dla<\/span> =<\/span> (<\/span>$rla2<\/span> -<\/span> $rla1<\/span>)<\/span> \/<\/span> 2<\/span>;<\/span>
\n        $a<\/span> =<\/span> (<\/span>sin<\/span><\/a>(<\/span>$dla<\/span>)<\/span> *<\/span> sin<\/span><\/a>(<\/span>$dla<\/span>)<\/span>)<\/span> +<\/span> cos<\/span><\/a>(<\/span>$rla1<\/span>)<\/span> *<\/span> cos<\/span><\/a>(<\/span>$rla2<\/span>)<\/span> *<\/span> (<\/span>sin<\/span><\/a>(<\/span>$dlo<\/span>)<\/span> *<\/span> sin<\/span><\/a>(<\/span>$dlo<\/span>)<\/span>)<\/span>;<\/span>
\n        $d<\/span> =<\/span> 2<\/span> *<\/span> atan2<\/span><\/a>(<\/span>sqrt<\/span><\/a>(<\/span>$a<\/span>)<\/span>,<\/span> sqrt<\/span><\/a>(<\/span>1<\/span> -<\/span> $a<\/span>)<\/span>)<\/span>;<\/span>
\n        \/\/<\/span>
\n        $meter<\/span> =<\/span> (<\/span>$earth_radius<\/span> *<\/span> $d<\/span>)<\/span>;<\/span>
\n        if<\/span> (<\/span>$unit<\/span> ==<\/span> 'k'<\/span>)<\/span> {<\/span>
\n            return<\/span> $meter<\/span> \/<\/span> 1000<\/span>;<\/span>
\n        }<\/span>
\n        return<\/span> $meter<\/span>;<\/span>
\n    }<\/span>
\n}<\/span><\/div><\/div>\n

Exemple d’utilisation : <\/p>\n

echo<\/span> round<\/span><\/a>(<\/span>Misc::<\/span>distance<\/span>(<\/span>48.86417880<\/span>,<\/span>2.34250440<\/span>,<\/span>43.6008177<\/span>,<\/span>3.8873392<\/span>)<\/span>,<\/span> 3<\/span>)<\/span>;<\/span>\/\/affiche 597.833 (pour 597,833 km entre les deux coordonn\u00e9es fournit)<\/span><\/div><\/div>\n

Il s’agit bien entendu de distance \u00e0 vol d’oiseau.<\/p>\n

L’article suivant explique comment obtenir les coordonn\u00e9es latitude et longitude correspondant \u00e0 une adresse gr\u00e2ce \u00e0 l’API Google Map.<\/a><\/p>\n

Rendez vous ici pour faire le calcul directement en MySql et dans Doctrine<\/p>\n<\/p>\n

source : http:\/\/www.phpsources.org\/scripts459-PHP.htm<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

La fonction toute pr\u00eate afin de pouvoir la retrouver facilement, pas plus d’explications, c’est des maths, \u00e7a pique la t\u00eate ! class Misc {     \/**      * Retourne la distance en metre ou kilometre (si $unit = ‘k’) entre deux latitude et longitude fournit      *\/     public static function […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2,7],"tags":[],"class_list":["post-120","post","type-post","status-publish","format-standard","hentry","category-developpement","category-php"],"acf":[],"yoast_head":"\nPHP : Calcul de la distance entre 2 coordonn\u00e9es GPS (latitude, longitude) - Pense b\u00eate d'un d\u00e9veloppeur web<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/numa-bord.com\/miniblog\/php-calcul-de-distance-entre-2-coordonnees-gps-latitude-longitude\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP : Calcul de la distance entre 2 coordonn\u00e9es GPS (latitude, longitude) - 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