в 10:37, 26 мая 2010

2010-05-26T10:37:25Z

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2010-05-26T07:02:55Z

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==Adding elements with []==



<source lang="html4strict">

<?
// This sets $lunch[0]
$lunch[] = "A";
// This sets $lunch[1]
$lunch[] = "B";
$dinner = array("A", "B","C");
// This sets $dinner[3]
$dinner[] = "F";
?>

</source>

==Alternating table row colors==



<source lang="html4strict">

<?
$row_color = array("red","green");
$color_index = 0;
$meal = array("breakfast" => "A",
"lunch" => "B",
"snack" => "C",
"dinner" => "D");
print "<table>\n";
foreach ($meal as $key => $value) {
print "<tr bgcolor="" . $row_color[$color_index] . "">";
print "<td>$key</td><td>$value</td></tr>\n";
$color_index = 1 - $color_index;
}
print "</table>";
?>

</source>

==Getting array size==



<source lang="html4strict">

<html>
<head>
<title>Getting array size</title>
</head>
<body>
<ul>
<?php
$arr = array();
for( $i = 0; $i < 3; $i++ )
{
$arr[ $i ] ="<li>This is element $i</li>";
}
foreach( $arr as $value )
{
echo($value);
}
$size = count( $arr );
echo( "<li>Total number of elements is $size </li>" );
?>
</ul>
</body>
</html>

</source>

==Loops through an indexed array of fruit names and creates a new array with the count of each fruit name.==



<source lang="html4strict">

<?php
$fruits = array("apple", "orange", "orange");
$fruit_count = array();
foreach ($fruits as $i=>$fruit) {
@$fruit_count[$fruit]++;
}
asort($fruit_count);
foreach ($fruit_count as $fruit=>$count) {
echo "$fruit = $count\n";
}
?>

</source>

==Setting an Array"s Size==



<source lang="html4strict">

<?php
$dogs = array("A" => "AA", "Bud" => "BB","C" => "D");
$birds = array("parrot", "magpie", "lorakeet", "cuckoo");
$pups = array_pad($dogs, 6, "mutt");
$more_birds = array_pad($birds, 6, "some bird");
printf("Pups:<pre>%s</pre>\n", var_export($pups, TRUE));
printf("More birds:<pre>%s</pre>\n", var_export($more_birds, TRUE));
$pups = array_pad($dogs, -6, "mutt");
$more_birds = array_pad($birds, -6, "some bird");
printf("Pups:<pre>%s</pre>\n", var_export($pups, TRUE));
printf("More birds:<pre>%s</pre>\n", var_export($more_birds, TRUE));
printf("Dogs:<pre>%s</pre>\n", var_export($dogs, TRUE));
printf("Birds:<pre>%s</pre>\n", var_export($birds, TRUE));
?>

</source>

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