Astrónomo, Historiador, Filósofo, Matemático. Era el bibliotecario de la biblioteca de Alejandría. Wiki Los secretos de la evolución son tiempo y muerte.Tiempo para acumular mutaciones favorables.Carl Sagan La tierra tiene unos 4,500 millones de añosGas y polvos estelares la formaron.
Concatenar strings $str1 = “hola “;$str2 = “que tal “;$str3= “como estas?”; $str4 = $str1.$str2.$str3; Strings CharsSe pueden reemplazar los caracteres:$str1 = «0123456789″;$str1[2]=»x«; Cambiar a mayusculas y minúsculas:strtoupper();strtolower(); Capitaliza la primera letra:ucfirst(); Capitaliza todas las letras:ucwords();ASCII chr(32) = spacechr(65) = A ord(“A”) = 65; Tags: strings
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: Windows Setup VPN »
<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: Design Properties and Methods »
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