{"id":135783,"date":"2024-07-17T12:06:16","date_gmt":"2024-07-17T06:36:16","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=135783"},"modified":"2024-07-17T12:06:17","modified_gmt":"2024-07-17T06:36:17","slug":"php-isset-function","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/php-isset-function\/","title":{"rendered":"PHP isset() Function with Examples"},"content":{"rendered":"

Program 1<\/h3>\n
<html>\r\n<head><title>Demo<\/title><\/head>\r\n<body>\r\n\r\n    <center>\r\n        <form method=post action=TestIsSet.php>\r\n            Name:<input type=text name=txtname>\r\n            <br>\r\n            Department:<input type=text name=txtdept>\r\n            <br>\r\n            Salary:<input type=text name=txtsalary>\r\n            <input type=submit value=Submit name=btnsubmit>\r\n\r\n<\/form>\r\n<?php \r\n  class Employee\r\n  {\r\n       public $empname;\r\n       private $empdept;\r\n       private $empsalary;\r\n       public function setdata($dept,$sal)\r\n       {\r\n           $this->empdept=$dept;\r\n           $this->empsalary=$sal;\r\n       }\r\n       public function __isset($pname)\r\n       {\r\n              echo isset($this->$pname);\r\n       }\r\n  }\r\n\r\n  if(isset($_POST['btnsubmit']))\r\n  {\r\n      $e=new Employee();\r\n     $e->empname=\"Vikas Sharma\";\r\n     $e->setdata('Computer',70000);\r\n     echo isset($e->empname);\r\n     echo isset($e->empdept);\r\n    echo isset($e->empsalary);\r\n  }\r\n?>\r\n<\/center>\r\n<\/body>\r\n<\/html><\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Program 1 <html> <head><title>Demo<\/title><\/head> <body> <center> <form method=post action=TestIsSet.php> Name:<input type=text name=txtname> <br> Department:<input type=text name=txtdept> <br> Salary:<input type=text name=txtsalary> <input type=submit value=Submit name=btnsubmit> <\/form> <?php class Employee { public $empname; private $empdept; private...<\/p>\n","protected":false},"author":86671,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31445],"tags":[32654,32653,21772,32652,32332,32333,32655],"class_list":["post-135783","post","type-post","status-publish","format-standard","hentry","category-php-tutorials","tag-isset-function","tag-isset-function-in-php","tag-php","tag-php-isset-function","tag-php-practical","tag-php-program","tag-python-program-on-isset-function"],"yoast_head":"\nPHP isset() Function with Examples - DataFlair<\/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:\/\/data-flair.training\/blogs\/php-isset-function\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP isset() Function with Examples - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 <html> <head><title>Demo<\/title><\/head> <body> <center> <form method=post action=TestIsSet.php> Name:<input type=text name=txtname> <br> Department:<input type=text name=txtdept> <br> Salary:<input type=text name=txtsalary> <input type=submit value=Submit name=btnsubmit> <\/form> <?php class Employee { public $empname; 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