"When you finish this book, you will know how the PHP language works, how to use the many powerful extensions that come standard with PHP, and how to design and build your own PHP web applications."

"
#######################
## Cookie functions
#######################
"

"

////////////////////////
// Cookie functions
////////////////////////

"
"
  111101101
& 110111001
  ---------
  110101001
  
  "
  
"
$string1 = "FRED flintstone";
$string2 = "barney rubble";
print(strtolower($string1));            
print(strtoupper($string1));            
print(ucfirst($string2));               
print(ucwords($string2));               
fred flintstone
FRED FLINTSTONE
Barney rubble
Barney Rubble
"

"
$message = <<< END
To: you@youcorp
From: me@mecorp
Subject: pay up

Pay me or else!
END;
preg_match('/^subject: (.*)/im', $message, $match);
// $match[1] is 'pay up'
"

malevich:
"
<?php
 $im = ImageCreate(200,200);
 $white = ImageColorAllocate($im,0xFF,0xFF,0xFF);
 $black = ImageColorAllocate($im,0x00,0x00,0x00);
 ImageFilledRectangle($im,50,50,150,150,$black);
 ImageString($im,5,50,160,"A Black Box",$black);
 Header('Content-Type: image/png');
 ImagePNG($im);
?>
"