PHP数组的学习
想说的话都在代码里
这次用的<html>把php套进去的，效果都一样但是我更偏向于现在这种，可以说就是加html和css方便一些，虽然目前我还不知道这怎么去link在一起
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>qwe</title>
</head>
<body>
<?php
/*基础的数组案例*/
$books = array("道德经","abc英语读本","语文书","生物书");
echo "我喜欢看".$books[0].",".$books[1].",".$books[2].",".$books[3];
echo "<br>";
echo count($books); /*获得数组的长度*/
echo "<br>";
/*使用for循环来遍历数组*/
$foot = array("地三鲜","水煮肉片","手撕包菜","酸菜鱼");
$sum = count($foot);
for ($i=0; $i < $sum; $i++) {
echo $foot[$i];
echo "<br>";
}
/*PHP关联数组,关联数组是使用您分配给数组的指定键的数组。*/
$Itclass = array("软件一班"=>"good","软件二班"=>"great","软件三班"=>"pretty","软件四班"=>"beaty");
$suml = count($Itclass);
echo "软件一班是".$Itclass['软件一班'];
echo "<br>";
/*脑袋抽了想用for去便利，结果不行，是通过"软件一班"来找到输出对应的"good"
for ($j=0; $j < $suml; $j++) {
echo "软件三班的评分是：";
echo $Itclass[$j];
echo "<br>";
}*/
/*标准成功案例*/
$age=array("Bill"=>"63","Steve"=>"56","Elon"=>"47");
echo "Elon is " . $age['Elon'] . " years old.";
echo "<br>";
/*遍历关联数组*/
/*上面我捣鼓半天用for不能都遍历出来是因为得有专门的foreach来循环遍历,我用Itclass的例子来实现效果*/
foreach ($Itclass as $key => $value) {
echo "班级：".$key."班级整体情况：".$value;
echo "<br>";
}
?>
</body>
</html>