html & php
Post on 30-Dec-2015
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HTML & PHP
What’s the difference?
HTML
Hypertext Markup Language Key Word is “Markup” HTML is the code that makes the “screen” All web pages are made of HTML HTML is not a programming language Files end in .html
HTML required keywords
<html></html> <head></head> <title></title> <body></body>
HTML example – Hello World
<html>
<head>
<title>Here is the Title</title>
</head>
<body>
Hello World!
</body>
</html>
• Blank lines and spaces are ignored
HTML common keywords
<div></div> <table></table> <p></p> <form></form> <br /> <img /> <a></a>
Subfiles to Tables
<table> …subfile data … </table>
_ keyboard $12.95
_ Mouse $19.95
<table>
<tbody>
<tr><td>_</td><td>keyboard</td><td>$12.95</td></tr>
<tr><td>_</td><td>Mouse</td><td>$19.95</td></tr>
</tbody>
</table>
HTML advanced example<html>
<head>
<title>Advanced Example</title>
</head>
<body>
<p>This text is in a paragraph</p>
This text is not inside a paragraph.
Neither is this.
<p>But this text is</p>
<div>And this text is in a Div tag</div>
</body>
</html>
PHP
Pre-Hypertext Processor The programming language (logic) Non-Compiled Stand Alone or imbedded in HTML All PHP files must end in .php
PHP and RPG
Both are easy to use for business logic Both are procedural languages Both can access iseries objects Both run on the iseries Both benefit from short acronyms
PHP not RPG
Free Format (RPG 2 / 3) Non-Compiled Dynamically Typed Variables $var Tags <?php ?> C Style end lines “;”
PHP example<?php
echo “Hello World”;
?>
<?php
$variable = “Hello World”;
echo $variable;
?>
PHP + HTML example<html>
<head>
<title>PHP + HTML example</title>
</head>
<body>
<?php $variable = “Hello World!!!” ?>
<p><?php echo $variable ?></p>
<?php $variable = “Part 2” ?>
<p><?php echo $variable ?></p>
</body>
</html>
PHP conditionals
If($x == 2){ echo “x is equal to 2”; } while($x < 3){ echo $x; $x++; } foreach($array as $x){ echo $x; } do{ echo $x; $x++; } while($x <= 10); for… switch…
Try it out!
Go to your page and try creating and changing variables.
Change a variable from a string to an integer: $var = “Hello World”; echo $var; $var = 501; echo $var;
Test Paragraphs and line breaks
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