{"id":249,"date":"2020-11-09T11:24:33","date_gmt":"2020-11-09T08:24:33","guid":{"rendered":"http:\/\/www.etemkeskin.com\/?p=249"},"modified":"2020-11-09T11:24:39","modified_gmt":"2020-11-09T08:24:39","slug":"php-de-en-cok-kullanilan-gomulu-build-in-fonksiyonlar","status":"publish","type":"post","link":"https:\/\/www.etemkeskin.com\/index.php\/tr\/2020\/11\/09\/php-de-en-cok-kullanilan-gomulu-build-in-fonksiyonlar\/","title":{"rendered":"PHP’ de En \u00c7ok Kullan\u0131lan G\u00f6m\u00fcl\u00fc (Build-in) Fonksiyonlar"},"content":{"rendered":"

1.) array() ;<\/strong> Php de array(dizi) olu\u015fturmak i\u00e7in kullan\u0131l\u0131r.<\/p>\n\n\n

$arr1=array(1,2,3,4,5);\u00a0 \/\/be\u015f de\u011ferli bir array olu\u015fturuldu.\n$arr2=array();\u00a0 \u00a0        \/\/bo\u015f array olu\u015fturuldu.\n$arr3= array(\"ad\"=>\"ali\",\"soyad\"=>\"kaya\",numara=>45);      \/\/key, value \u00e7ifti olan bir array olu\u015fturuldu.<\/pre>\n\n\n\n
2.)<\/strong> count() <\/strong>  : Bir array deki eleman say\u0131s\u0131n\u0131 d\u00f6nd\u00fcr\u00fcr.<\/p>\n\n\n\n
$cars=array(\"elma\",\"armut\",\"ayva\");\necho count($cars);    \/\/output olarak 3 say\u0131s\u0131n\u0131 d\u00f6nd\u00fcr\u00fcr.<\/pre>\n\n\n\n
3.) isset() :<\/strong> De\u011fi\u015fken tan\u0131mlan\u0131p bir de\u011fer atand\u0131ysa True<\/strong> de\u011fi\u015fken tan\u0131mlanmad\u0131ysa False<\/strong> de\u011ferini d\u00f6nd\u00fcr\u00fcr. <\/p>\n\n\n\n
$mail = $_POST['mail'];    \/\/html form post edilmediyse NULL de\u011feri al\u0131r\nif (isset($mail)){\n    echo \"mail post edildi\";\n}else{\n    echo \"mail post edilmedi.\";\n}<\/pre>\n\n\n\n
4.) is_array(): <\/strong>De\u011fi\u015fkenin array olup olmad\u0131\u011f\u0131n\u0131 kontrol eder. Boolean de\u011fer d\u00f6nd\u00fcr\u00fcr.<\/p>\n\n\n\n
isset($de\u011fi\u015fken)<\/p>\n\n\n\n
$deg = array(\"a\",\"b\",\"c\");\nis_array($deg);        \/\/output olarak True de\u011ferini d\u00f6nd\u00fcr\u00fcr.<\/pre>\n\n\n\n
5.) substr(<\/strong>string,start,length<\/em> ):  <\/strong>Bir string yani karakter dizisindeki istenilen say\u0131da karakteri d\u00f6nd\u00fcrmek i\u00e7in kullan\u0131l\u0131r.<\/p>\n\n\n\n
echo substr(\"Hello world\",3)   \/\/ 0' dan ba\u015flayarak sayarsak output olarak  \"lo world\"   d\u00f6nd\u00fcr\u00fcr.\necho substr(\"Hello world\",1,7);  \/\/\/ 0' dan ba\u015flayarak sayarsak output olarak  8 karakter \"lo worl\"   d\u00f6nd\u00fcr\u00fcr.<\/pre>\n","protected":false},"excerpt":{"rendered":"
1.) array() ; Php de array(dizi) olu\u015fturmak i\u00e7in kullan\u0131l\u0131r. 2.) count() : Bir array deki eleman say\u0131s\u0131n\u0131 d\u00f6nd\u00fcr\u00fcr. 3.) isset() : De\u011fi\u015fken tan\u0131mlan\u0131p bir de\u011fer atand\u0131ysa True de\u011fi\u015fken tan\u0131mlanmad\u0131ysa False de\u011ferini d\u00f6nd\u00fcr\u00fcr. 4.) is_array(): De\u011fi\u015fkenin array olup olmad\u0131\u011f\u0131n\u0131 kontrol eder. Boolean de\u011fer d\u00f6nd\u00fcr\u00fcr. isset($de\u011fi\u015fken) 5.) substr(string,start,length ):  Bir string yani karakter dizisindeki istenilen say\u0131da karakteri d\u00f6nd\u00fcrmek i\u00e7in kullan\u0131l\u0131r.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[28],"tags":[],"yoast_head":"\nPHP' de En \u00c7ok Kullan\u0131lan G\u00f6m\u00fcl\u00fc (Build-in) Fonksiyonlar - blog website<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.etemkeskin.com\/index.php\/tr\/2020\/11\/09\/php-de-en-cok-kullanilan-gomulu-build-in-fonksiyonlar\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP' de En \u00c7ok Kullan\u0131lan G\u00f6m\u00fcl\u00fc (Build-in) Fonksiyonlar - blog website\" \/>\n<meta property=\"og:description\" content=\"1.) array() ; Php de array(dizi) olu\u015fturmak i\u00e7in kullan\u0131l\u0131r. 2.) count() : Bir array deki eleman say\u0131s\u0131n\u0131 d\u00f6nd\u00fcr\u00fcr. 3.) isset() : De\u011fi\u015fken tan\u0131mlan\u0131p bir de\u011fer atand\u0131ysa True de\u011fi\u015fken tan\u0131mlanmad\u0131ysa False de\u011ferini d\u00f6nd\u00fcr\u00fcr. 4.) is_array(): De\u011fi\u015fkenin array olup olmad\u0131\u011f\u0131n\u0131 kontrol eder. Boolean de\u011fer d\u00f6nd\u00fcr\u00fcr. isset($de\u011fi\u015fken) 5.) substr(string,start,length ):  Bir string yani karakter dizisindeki istenilen say\u0131da karakteri d\u00f6nd\u00fcrmek i\u00e7in kullan\u0131l\u0131r.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.etemkeskin.com\/index.php\/tr\/2020\/11\/09\/php-de-en-cok-kullanilan-gomulu-build-in-fonksiyonlar\/\" \/>\n<meta property=\"og:site_name\" content=\"blog website\" \/>\n<meta property=\"article:published_time\" content=\"2020-11-09T08:24:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-11-09T08:24:39+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.etemkeskin.com\/#website\",\"url\":\"https:\/\/www.etemkeskin.com\/\",\"name\":\"blog website\",\"description\":\"Etem KESK\\u0130N\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.etemkeskin.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"tr\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.etemkeskin.com\/index.php\/tr\/2020\/11\/09\/php-de-en-cok-kullanilan-gomulu-build-in-fonksiyonlar\/#webpage\",\"url\":\"https:\/\/www.etemkeskin.com\/index.php\/tr\/2020\/11\/09\/php-de-en-cok-kullanilan-gomulu-build-in-fonksiyonlar\/\",\"name\":\"PHP' de En \\u00c7ok Kullan\\u0131lan G\\u00f6m\\u00fcl\\u00fc (Build-in) Fonksiyonlar - 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