[PHP] Quick way to create your own Flags

[nirahiel]

You know the PHP flags like ENT_QUOTES when you use htmlentities for example ?

Well you can create your own flags easily.
Here is the code :

 //Lets say we make a function that will transform a string, and we need a flag to choose which transformation
$f = 1;//increment of the flags.
$flags = Array("BOLD","ITALIC","UNDERLINE","BLINK","UPPERCASE");//the flags.

//Now we are gonna MAKE the flags.
foreach($flags as $value) {
define($value,$f);
$f*=2;
}

/*
there are now 5 defines :
BOLD = 1
ITALIC = 2
UNDERLINE = 4
BLINK = 8
UPPERCASE = 16


Now we make the function that will use the flags.
*/

function transform($text,$flags = 0) {

//check the flags, always start with the last flag.
if($flags >= UPPERCASE) {
$text = strtoupper($text);
$flags -= UPPERCASE;
}
if($flags >= BLINK) {
$text = "<blink>".$text."</blink>";
$flags -= BLINK;
}
if($flags >= UNDERLINE) {
$text = "<u>".$text."</u>";
$flags -= UNDERLINE;
}
if($flags >= ITALIC) {
$text = "<i>".$text."</i>";
$flags -= ITALIC;
}
if($flags >= BOLD) {
$text = "<b>".$text."</b>";
$flags -= BOLD;
}


//now return the value
return $text;

}


//Ok if we want to use the function now just pass the string as first param and all the flags you want to use as the second param, using | as separator.
//for example :
echo transform("I am gonna be in bold and uppercase",BOLD|UPPERCASE); 
  

[itsgreg_x]

Maybe you should make a tutorial for it.
Like explaining syntax and stuff?

[jesu]

make a description of every lines... ahahah.. is it hard?