Java JSP Application Hosting Web Hosting, website hosting, web site hosting, web page hosting, Apache, PHP, MySQL, PERL, servlets Java, JSP, Python

Java JSP Application Hosting Web Hosting, website hosting, web site hosting , web page hosting Apache, PHP, MySQL, PERL, servlets Java, Python,JSP, Fundraising

Call Us Toll-Free
(877) 256-0328

Outside USA
1 - (201) 505-0430

Site Map

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER,
Private JVM (Java Virtual Machine),
Private Tomcat Server

Alden Hosting offers private JVM (Java Virtual Machine), Java Server Pages (JSP), Servlets, and Servlets Manager with our Web Hosting Plans WEB 4 PLAN and WEB 5 PLAN , WEB 6 PLAN .

At Alden Hosting we eat and breathe Java! We are the industry leader in providing affordable, quality and efficient Java web hosting in the shared hosting marketplace. All our sites run on our Java hosing platform configured for optimum performance using Java 1.6, Tomcat 6.0.X, MySQL 5.0.x, Apache 2.2.xx and web application frameworks such as Struts, Hibernate, Cocoon, Ant, etc.

We offer only one type of Java hosting - Private Tomcat. Hosting accounts on the Private Tomcat environment get their very own Tomcat server. You can start and re-start your entire Tomcat server yourself.

empty

PHP Manual
Prev		Next

empty

(PHP 3, PHP 4, PHP 5)

empty -- Determine whether a variable is empty

Description

bool empty ( mixed var )

Determine whether a variable is considered to be empty.

Parameters

var

Variable to be checked

Note: empty() only checks variables as anything else will result in a parse error. In other words, the following will not work: empty(trim($name)).

empty() is the opposite of (boolean) var, except that no warning is generated when the variable is not set.

Return Values

Returns FALSE if var has a non-empty and non-zero value.

The following things are considered to be empty:

"" (an empty string)

0 (0 as an integer)

"0" (0 as a string)

NULL

FALSE

array() (an empty array)

var $var; (a variable declared, but without a value in a class)

ChangeLog

Version	Description
PHP 5	As of PHP 5, objects with no properties are no longer considered empty.
PHP 4	As of PHP 4, The string value "0" is considered empty.

Examples

Example 1. A simple empty() / isset() comparison.


<?php
$var = 0;

// Evaluates to true because $var is empty
if (empty($var)) {
    echo '$var is either 0, empty, or not set at all';
}

// Evaluates as true because $var is set
if (isset($var)) {
    echo '$var is set even though it is empty';
}
?>

Notes

Note: Because this is a language construct and not a function, it cannot be called using variable functions

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER,
Private JVM (Java Virtual Machine),
Private Tomcat Server

Alden Hosting offers private JVM (Java Virtual Machine), Java Server Pages (JSP), Servlets, and Servlets Manager with our Web Hosting Plans WEB 4 PLAN and WEB 5 PLAN , WEB 6 PLAN .

Web Plan 1	Web Plan 2	Web Plan 3	Dedicated Servers
Web Plan 4	Web Plan 5	Web Plan 6	Web Developer

http://alden-servlet-Hosting.com
JSP at alden-servlet-Hosting.com
Servlets at alden-servlet-Hosting.com
Servlet at alden-servlet-Hosting.com
Tomcat at alden-servlet-Hosting.com
MySQL at alden-servlet-Hosting.com
Java at alden-servlet-Hosting.com
sFTP at alden-servlet-Hosting.com
http://alden-tomcat-Hosting.com
JSP at alden-tomcat-Hosting.com
Servlets at alden-tomcat-Hosting.com
Servlet at alden-tomcat-Hosting.com
Tomcat at alden-tomcat-Hosting.com
MySQL at alden-tomcat-Hosting.com
Java at alden-tomcat-Hosting.com
sFTP at alden-tomcat-Hosting.com
http://alden-sftp-Hosting.com
JSP at alden-sftp-Hosting.com
Servlets at alden-sftp-Hosting.com
Servlet at alden-sftp-Hosting.com
Tomcat at alden-sftp-Hosting.com
MySQL at alden-sftp-Hosting.com
Java at alden-sftp-Hosting.com
sFTP at alden-sftp-Hosting.com
http://alden-jsp-Hosting.com
JSP at alden-jsp-Hosting.com
Servlets at alden-jsp-Hosting.com
Servlet at alden-jsp-Hosting.com
Tomcat at alden-jsp-Hosting.com
MySQL at alden-jsp-Hosting.com
Java at alden-jsp-Hosting.com
sFTP at alden-jsp-Hosting.com
http://alden-java-Hosting.com
JSp at alden-java-Hosting.com
Servlets at alden-java-Hosting.com
Servlet at alden-java-Hosting.com
Tomcat at alden-java-Hosting.com
MySQL at alden-java-Hosting.com
Java at alden-java-Hosting.com
sFTP at alden-java-Hosting.com
JSP Servlets Tomcat mysql Java JSP Servlets Tomcat mysql Java JSP Servlets Tomcat mysql Java JSP Servlets Tomcat mysql Java JSP at JSP.aldenWEBhosting.com Servlets at servlets.aldenWEBhosting.com Tomcat at Tomcat.aldenWEBhosting.com mysql at mysql.aldenWEBhosting.com Java at Java.aldenWEBhosting.com Web Hosts Portal Web Links Web Links Web Hosting JSP Solutions Web Links JSP Solutions Web Hosting Servlets Solutions Web Links Servlets Solutions Web Hosting Web Links Web Links . .
.
.
. .
. . . . . . jsp hosting servlets hosting web hosting web sites designed cheap web hosting web site hosting myspace web hosting

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER, Private JVM (Java Virtual Machine), Private Tomcat Server

empty

Description

Parameters

Return Values

ChangeLog

Examples

Notes

See Also

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER, Private JVM (Java Virtual Machine), Private Tomcat Server

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER,
Private JVM (Java Virtual Machine),
Private Tomcat Server

JAVA, JSP, SERVLETS, TOMCAT, SERVLETS MANAGER,
Private JVM (Java Virtual Machine),
Private Tomcat Server