Page 309 - Beginning PHP 5.3

Chapter 10: Preserving State With Query Strings
< !DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN”
“http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd” >
< html xmlns=”http://www.w3.org/1999/xhtml” xml:lang=”en” lang=”en” >
< head >
< title > Number squaring < /title >
< link rel=”stylesheet” type=”text/css” href=”common.css” / >
< style type=”text/css” >
th { text-align: left; background-color: #999; }
th, td { padding: 0.4em; }
tr.alt td { background: #ddd; }
< /style >
< /head >
< body >

< ?php
define( “PAGE_SIZE”, 10 );
$start = 0;

if ( isset( $_GET[“start”] ) and $_GET[“start”] > = 0 and $_GET[“start”] <
=
1000000 ) {
$start = (int) $_GET[“start”];
}
$end = $start + PAGE_SIZE - 1;
? >
< h2 > Number squaring < /h2 >

< p > Displaying the squares of the numbers < ?php echo $start ? > to < ?php echo
$end ? > : < /p >

< table cellspacing=”0” border=”0” style=”width: 20em; border: 1px solid
#666;” >
< tr >
< th > n < /th >

< th > n < sup > 2 < /sup > < /th >
< /tr >
< ?php
for ( $i=$start; $i < = $end; $i++ )
{
? >

< tr < ?php if ( $i % 2 != 0 ) echo ‘ class=”alt”’ ? > >

< td > < ?php echo $i? > < /td >
< td > < ?php echo pow( $i, 2 )? > < /td >

< /tr >
< ?php
}
? >
< /table >
< p >

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9/21/09 9:05:08 AM