Download - PHP Lecture 3
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What is PHP?
PHP stands for PHP: Hypertext Preprocessor
PHP is a server-side scripting language, like ASP
PHP scripts are executed on the server
PHP supports many databases (MySQL, Informix,
Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.)
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What is a PHP File?
PHP files can contain text, HTML tags and scripts
PHP files are returned to the browser as plain HTMLPHP files have a file extension of ".php",
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What is MySQL?
MySQL is a database server
MySQL is ideal for both small and large applications
MySQL supports standard SQLMySQL compiles on a number of platforms
MySQL is free to download and use
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Where to Start?
To get access to a web server with PHP support, you can:
Install Apache (or IIS) on your own server, install PHP, and MySQL
Or find a web hosting plan with PHP and MySQL support
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$addition = 2 + 4;
$subtraction = 6 - 2;
$multiplication = 5 * 3;
$division = 15 / 3;
$modulus = 5 % 2;
echo "Perform addition: 2 + 4 = ".$addition."
";echo "Perform subtraction: 6 - 2 = ".$subtraction."
"; echo"Perform multiplication: 5 * 3 = ".$multiplication."
";echo "Perform division: 15 / 3 = ".$division."
";echo "Perform modulus: 5 % 2 = " . $modulus . ". Modulus is the
remainder after the division operation has been performed. In this
case it was 5 / 2, which has a remainder of 1.";
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$my_name = "someguy";if ( $my_name == "someguy" )
{
echo "Your name is someguy!
";}echo "Welcome to my homepage!";
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$my_name = anotherguy";if ( $my_name == "someguy" )
{
echo "Your name is someguy!
";}echo "Welcome to my homepage!";
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$number_three = 3;
if ( $number_three == 3 )
{ echo "The if statement evaluated to true";
}else
{
echo "The if statement evaluated to false";}
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$employee = "Bob";
if($employee == "Ms. Tanner"){
echo "Hello Ma'am";
} elseif($employee == "Bob"){echo "Good Morning Sir!";
} else {
echo "Morning";}
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$destination = "Tokyo";
echo "Traveling to $destination
";switch ($destination){
case "Las Vegas":echo "Bring an extra $500";
break;
case "Amsterdam":
echo "Bring an open mind";
break;case "Egypt":
echo "Bring 15 bottles of PEPSI";
break;
case "Tokyo":
echo "Bring lots of money";
break;
case "Caribbean Islands":
echo "Bring a swimsuit";
break;
}
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$destination = "Tokyo";
echo "Traveling to $destination
";switch ($destination){
case "Las Vegas":
echo "Bring an extra $500";
break;
case "Amsterdam":
echo "Bring an open mind";
break;
case "Egypt":
echo "Bring 15 bottles of PEPSI";break;
case "Tokyo":
echo "Bring lots of money";
break;
case "Caribbean Islands":echo "Bring a swimsuit";
break;
default:
echo LEAVE IT!";
break;}
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Art Supply Order Form
Paint
Brushes
Erasers
Quantity:
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