Determine if a variable is set and is not NULL
In PHP you can do if(isset($array['foo'])) { ... }. In JavaScript you often use if(array.foo) { ... } to do the …
javascript issetI have a form on one page that submits to another page. There, it checks if the input mail is …
php issetI was trying to call a particular php function in submit of a form both the form and php scripts …
php issetI am looking to expand on my PHP knowledge, and I came across something I am not sure what it …
php issetI have a little problem with my if(isset($_POST['submit'])) code. What I want is some echos and a …
php mysql post if-statement issetIs there something in javascript/jQuery to check whether variable is set/available or not? In php, we use isset($…
javascript php jquery issetFrom the isset() docs: isset() will return FALSE if testing a variable that has been set to NULL. Basically, isset() …
php variables issetIs there a shorthand way to assign a variable to something if it doesn't exist in PHP? if(!isset($var) { $…
php isset shorthandI've got an array var assoc_pagine = new Array(); assoc_pagine["home"]=0; assoc_pagine["about"]=1; assoc_pagine["work"]=2; I tried …
javascript arrays isset