unset() Syntax: void unset(mixed var [, mixed var, …])var Variable to unset. Unsets a variable. unset() destroys one or more variables and deallocates the memory associated with them. Code: <?php $a = «Some data»; unset($a); if (!isset($a)) { print «\$a is no longer available»; } ?> Output: $a is no longer available
¿ Que es PHP ? Scripting / Programming Language (“C – Like”) FREE and Open Source Fast, Open, Stable, Cross Platform! No compilation! PHP is all about “Community”
Options +IndexesAuthName «Restricted Area» AuthType Basic AuthUserFile /home/carlosap/.htpasswd AuthGroupFile /dev/null require valid-user<Files .htaccess>order allow,denydeny from all</Files> Tags: htaccess, auth, indexes
ESCENARIO : CLIENTE VPN : WINXP , IP = 192.168.1.53 obtenida por DHCP del ROUTER SERVIDOR : WIN 2003 SERVER en VMWARE WS , IP = 192.168.1.35 dada por DHCP del ROUTER Instalé el servidor de VPN normalmente y me funciono pero sin tocar absolutamente nada dejó de funcionar dándome el error 733 . Después… Leer más »
<script language=»javascript»> //Images MouseOver function imageMouseOver(){ document.supercomputadora.src=»images/scomputer.jpg»; }function imageMouseOut(){ document.supercomputadora.src=»images/scomputergris.jpg»; } </script> </head> <body><a href=»#» onmouseover=»javascript:imageMouseOver()» onmouseout=»javascript:imageMouseOut()»<img src=»images/scomputergris.jpg» name=»supercomputadora» /></a> </body> Tags: mouseover, mouseout
Navigator Object Determine details of the user browser appName – browser application name appVersion – string containing version details cookieEnabled – boolean value mimeTypes – array of known types of files plugins – array of plug-in application platform – operating system http://www.devguru.com/technologies/javascript/11226.asp Tags: detecting+browser, javascript
Hyperlink Properties ( URL, TITLE, DESCRIPTION) Methods (Create, Display) Create Construction Function CONSTRUCTOR – Its a special function designed to create an instance of an object May or may not containg variables used to initialize the object Uses the “this” keyword to reference the current instance of the object Develop Methods functions that change the… Leer más »
Why develop objects? Data hiding Code elegance Code reuse Script stability Steps for developing custom objects Design properties and methods Create constructor functions Develop methods Bind methods to objects
information that describes the object functions that change the state of the object Duality of the object variable -> functionproperty (information about the object)-> method (what the object can do)attribute->behaviourdescription->actionadjetive->verb Encapsulation Binding data and functions Provides robust and secure set of elements simple interface hide details class an object prototype Object instantaion with instructions… Leer más »
document.write(«<h1>String Methods</h1>»); var sample_string = «AaBbCcDdEeFfGg»; document.write(«<br>Orignal String: » + sample_string); document.write(«<h2>Formatting</h2>»); document.write(«<br>toLowerCase: » + sample_string.toLowerCase()); document.write(«<br>toUpperCase: » + sample_string.toUpperCase()); document.write(«<br>bold: » + sample_string.bold()); document.write(«<br>italics: » + sample_string.italics()); document.write(«<br>strike: » + sample_string.strike()); document.write(«<br>big: » + sample_string.big()); document.write(«<br>small: » + sample_string.small()); document.write(«<br>sup: » + sample_string.sup()); document.write(«<br>sub: » + sample_string.sub()); document.write(«<br>fixed: » + sample_string.fixed()); document.write(«<br>fontcolor(red): » +… Leer más »