PHP implémente des fonctions d'affectation et de parcours de tableaux bidimensionnels

<?php
  $loptop1[&#39;lid&#39;] = 1000;
  $loptop1[&#39;pic&#39;] = &#39;img/1.png&#39;;
  $loptop1[&#39;title&#39;] = &#39;L1&#39;;
  $loptop1[&#39;price&#39;] = 5000;
  $loptop1[&#39;isOnSale&#39;] = 1;
  $loptop1[&#39;shelfTime&#39;] = 1234556;
  $loptop2[&#39;lid&#39;] = 1001;
  $loptop2[&#39;pic&#39;] = &#39;img/2.png&#39;;
  $loptop2[&#39;title&#39;] = &#39;L2&#39;;
  $loptop2[&#39;price&#39;] = 5000;
  $loptop2[&#39;isOnSale&#39;] = 1;
  $loptop2[&#39;shelfTime&#39;] = 123444456;
  $loptop3[&#39;lid&#39;] = 1002;
  $loptop3[&#39;pic&#39;] = &#39;img/3.png&#39;;
  $loptop3[&#39;title&#39;] = &#39;L3&#39;;
  $loptop3[&#39;price&#39;] = 5000;
  $loptop3[&#39;isOnSale&#39;] = 1;
  $loptop3[&#39;shelfTime&#39;] = 1243454556;
  $loptop4[&#39;lid&#39;] = 1003;
  $loptop4[&#39;pic&#39;] = &#39;img/4.png&#39;;
  $loptop4[&#39;title&#39;] = &#39;L4&#39;;
  $loptop4[&#39;price&#39;] = 5000;
  $loptop4[&#39;isOnSale&#39;] = 1;
  $loptop4[&#39;shelfTime&#39;] = 1234364556;
  $loptop[0] = $loptop1;
  $loptop[1] = $loptop2;
  $loptop[2] = $loptop3;
  $loptop[3] = $loptop4;
  for($i=0;$i<count($loptop);$i++){
    //echo "编号：$loptop[$i][lid]"; //错误
    //echo "编号：" . $loptop[$i][&#39;lid&#39;]; //正确，但不推荐
    $tmp = $loptop[$i];
    echo "编号：$tmp[lid]<br/>";
    echo "图片：$tmp[pic]<br/>";
    echo "标题：$tmp[title]<br/>";
    echo "价格：$tmp[price]<br/>";
    echo "是否特价：$tmp[isOnSale]<br/>";
    echo "上架时间：" . date("Y-m-d H:i:s",$tmp[&#39;shelfTime&#39;]) . "<br/>";
  }
?>

编号：1000
图片：img/1.png
标题：L1
价格：5000
是否特价：1
上架时间：1970-01-15 06:55:56
编号：1001
图片：img/2.png
标题：L2
价格：5000
是否特价：1
上架时间：1973-11-29 18:07:36
编号：1002
图片：img/3.png
标题：L3
价格：5000
是否特价：1
上架时间：2009-05-27 20:02:36
编号：1003
图片：img/4.png
标题：L4
价格：5000
是否特价：1
上架时间：2009-02-11 15:02:36

<?php
  $stu1[&#39;sid&#39;] = 1000;
  $stu1[&#39;userName&#39;] = "abc1";
  $stu1[&#39;passWord&#39;] = "123456";
  $stu1[&#39;email&#39;] = "2109882885@qq.com";
  $stu1[&#39;tel&#39;] = "15700769164";
  $stu1[&#39;headScu&#39;] = "stu1.png";
  $stu1[&#39;sex&#39;] = "M";
  $stu1[&#39;regTime&#39;] = 1111223435;
  $stu1[&#39;isOnline&#39;] = 1;
  $stu2[&#39;sid&#39;] = 1001;
  $stu2[&#39;userName&#39;] = "abc2";
  $stu2[&#39;passWord&#39;] = "123456";
  $stu2[&#39;email&#39;] = "2109882886@qq.com";
  $stu2[&#39;tel&#39;] = "15700769165";
  $stu2[&#39;headScu&#39;] = "stu2.png";
  $stu2[&#39;sex&#39;] = "M";
  $stu2[&#39;regTime&#39;] = 122435344;
  $stu2[&#39;isOnline&#39;] = 1;
  $stu3[&#39;sid&#39;] = 1002;
  $stu3[&#39;userName&#39;] = "abc3";
  $stu3[&#39;passWord&#39;] = "123456";
  $stu3[&#39;email&#39;] = "2109882887@qq.com";
  $stu3[&#39;tel&#39;] = "15700769166";
  $stu3[&#39;headScu&#39;] = "stu3.png";
  $stu3[&#39;sex&#39;] = "M";
  $stu3[&#39;regTime&#39;] = 3463464567;
  $stu3[&#39;isOnline&#39;] = 0;
  $stu4[&#39;sid&#39;] = 1003;
  $stu4[&#39;userName&#39;] = "abc4";
  $stu4[&#39;passWord&#39;] = "123456";
  $stu4[&#39;email&#39;] = "2109882888@qq.com";
  $stu4[&#39;tel&#39;] = "15700769167";
  $stu4[&#39;headScu&#39;] = "stu4.png";
  $stu4[&#39;sex&#39;] = "F";
  $stu4[&#39;regTime&#39;] = 235234534;
  $stu4[&#39;isOnline&#39;] = 1;
  $stu = [$stu1,$stu2,$stu3,$stu4];
  for($i=0;$i<count($stu);$i++){
    $tmp = $stu[$i];
    echo "编号：$tmp[sid]<br/>";
    echo "用户名：$tmp[userName]<br/>";
    echo "密码：$tmp[passWord]<br/>";
    echo "邮箱：$tmp[email]<br/>";
    echo "手机：$tmp[tel]<br/>";
    echo "头像：$tmp[headScu]<br/>";
    if($tmp[&#39;sex&#39;] == "M"){
      echo "性别：男<br/>";
    }
    if($tmp[&#39;sex&#39;] == "F"){
      echo "性别：女<br/>";
    }
    echo "注册时间：" . date(&#39;Y-m-d H:i:s&#39;,$tmp[&#39;regTime&#39;]) . "<br/>";
    if($tmp[&#39;isOnline&#39;] == 1){
      echo "状态：在线<br/>";
    }
    if($tmp[&#39;isOnline&#39;] == 0){
      echo "状态：不在线<br/>";
    }
  }
?>

编号：1000
用户名：abc1
密码：123456
邮箱：2109882885@qq.com
手机：15700769164
头像：stu1.png
性别：男
注册时间：2005-03-19 09:10:35
状态：在线
编号：1001
用户名：abc2
密码：123456
邮箱：2109882886@qq.com
手机：15700769165
头像：stu2.png
性别：男
注册时间：1973-11-18 01:49:04
状态：在线
编号：1002
用户名：abc3
密码：123456
邮箱：2109882887@qq.com
手机：15700769166
头像：stu3.png
性别：男
注册时间：1943-08-27 03:01:11
状态：不在线
编号：1003
用户名：abc4
密码：123456
邮箱：2109882888@qq.com
手机：15700769167
头像：stu4.png
性别：女
注册时间：1977-06-15 14:55:34
状态：在线