吴裕雄--天生自然 PHP开发学习：数组

<?php
$cars=array("Volvo","BMW","Toyota");
echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . ".";
?> 

<?php
$cars=array("Volvo","BMW","Toyota");
echo count($cars);
?> 

<?php
$cars=array("Volvo","BMW","Toyota");
$arrlength=count($cars); 

for($x=0;$x<$arrlength;$x++)
{
    echo $cars[$x];
    echo "<br>";
}
?> 

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
echo "Peter is " . $age['Peter'] . " years old.";
?> 

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43"); 

foreach($age as $x=>$x_value)
{
    echo "Key=" . $x . ", Value=" . $x_value;
    echo "<br>";
}
?>