{"id":1112,"date":"2020-09-23T20:37:26","date_gmt":"2020-09-23T18:37:26","guid":{"rendered":"https:\/\/ekiwi.de\/?p=1112"},"modified":"2020-10-26T08:43:58","modified_gmt":"2020-10-26T07:43:58","slug":"php-e-mail-adressen-auf-gueltigkeit-ueberpruefen","status":"publish","type":"post","link":"https:\/\/ekiwi.de\/index.php\/1112\/php-e-mail-adressen-auf-gueltigkeit-ueberpruefen\/","title":{"rendered":"PHP: E-Mail-Adressen auf G\u00fcltigkeit \u00fcberpr\u00fcfen"},"content":{"rendered":"<p>Wie \u00fcberpr\u00fcfe ich eine E-Mail-Adresse in PHP auf G\u00fcltigkeit?<\/p>\n<p><!--more--><\/p>\n<p>Die \u00dcberpr\u00fcfung, ob es sich bei einem String um g\u00fcltige E-Mail-Adresse handelt ist mit PHP relativ einfach. M\u00f6glich macht es die Funktion &#8222;<a href=\"https:\/\/www.php.net\/manual\/en\/function.filter-var\" rel=\"noopener noreferrer\" target=\"_blank\">filter_var<\/a>&#8222;. <\/p>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/yKOMT4zVYVA\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Die Funktion, zusammen mit <a href=\"https:\/\/www.php.net\/manual\/en\/filter.filters.validate.php\" rel=\"noopener noreferrer\" target=\"_blank\">vordefinierten Filtern<\/a> erlaubt eine schnelle \u00dcberpr\u00fcfung einer E-Mail-Adresse auf G\u00fcltigkeit.<\/p>\n<pre>\r\nfilter_var($email, FILTER_VALIDATE_EMAIL)\r\n<\/pre>\n<p>Dies l\u00e4sst sich leicht in eine Funktion verpacken:<\/p>\n<pre>function isValidEmail($email) {\r\n    if (filter_var($email, FILTER_VALIDATE_EMAIL)) {\r\n        return true;\r\n    }\r\n    return false;\r\n}\r\n<\/pre>\n<p>Testen wir die Funktion nun noch:<\/p>\n<pre>$mail1 = &quot;andy.dunkel@ekiwi.de&quot;;\r\n$mail2 = &quot;andy.dunkel @ekiwi.de&quot;;\r\n$mail3 = &quot;andy.dunkelekiwi.de&quot;;\r\n$mail4 = &quot;&quot;;\r\n$mail5 = &quot;lord@host&quot;;\r\n\r\necho $mail1 . &quot; - &quot; . json_encode(isValidEmail($mail1)) . &quot;&lt;br\/&gt;\\n&quot;;\r\necho $mail2 . &quot; - &quot; . json_encode(isValidEmail($mail2)) . &quot;&lt;br\/&gt;\\n&quot;;\r\necho $mail3 . &quot; - &quot; . json_encode(isValidEmail($mail3)) . &quot;&lt;br\/&gt;\\n&quot;;\r\necho $mail4 . &quot; - &quot; . json_encode(isValidEmail($mail4)) . &quot;&lt;br\/&gt;\\n&quot;;\r\necho $mail5 . &quot; - &quot; . json_encode(isValidEmail($mail5)) . &quot;&lt;br\/&gt;\\n&quot;;<\/pre>\n<p>Die Ausgabe:<\/p>\n<pre>\r\nandy.dunkel@ekiwi.de - true\r\nandy.dunkel @ekiwi.de - false\r\nandy.dunkelekiwi.de - false\r\n- false\r\nlord@host - false\r\n<\/pre>","protected":false},"excerpt":{"rendered":"<p>Wie \u00fcberpr\u00fcfe ich eine E-Mail-Adresse in PHP auf G\u00fcltigkeit?<\/p>\n","protected":false},"author":1,"featured_media":57,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[14],"tags":[31],"class_list":["post-1112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php","tag-php"],"_links":{"self":[{"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/posts\/1112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/comments?post=1112"}],"version-history":[{"count":0,"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/posts\/1112\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/media\/57"}],"wp:attachment":[{"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/media?parent=1112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/categories?post=1112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ekiwi.de\/index.php\/wp-json\/wp\/v2\/tags?post=1112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}