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php數(shù)組的幾個基本操作

時間:2024-09-22 04:19:45 php語言 我要投稿
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關(guān)于php數(shù)組的幾個基本操作

  數(shù)組是php中最常用的,所以大家一定要熟練的掌握。下面是小編為大家搜集整理出來的有關(guān)于php數(shù)組的幾個基本操作,一起了解一下吧!

  代碼如下:

  <?php

  /*

  * 簡單的數(shù)組定義與訪問

  */

  echo "簡單的數(shù)組定義與訪問<br>";

  echo "############################################################<br>";

  $address=array(5);

  $address[0]="福州";

  $address[1]="廈門";

  $address[2]="漳州";

  $address[3]="泉州";

  $address[4]="寧德";

  $address[5]="南平";

  $address[6]="龍巖";

  echo "我現(xiàn)在住在$address[1]<br>";

  echo "############################################################<br><br><br>";

  /*

  * 數(shù)組遍歷

  */

  echo "通過for循環(huán)進(jìn)行數(shù)組遍歷<br>";

  echo "############################################################<br>";

  for($index=0;$index<count($address);$index++){

  print("數(shù)組中第".$index."個的地區(qū)$address[$index]為<br>");

  }

  echo "############################################################<br><br><br>";

  /*

  * 數(shù)組初始化

  */

  echo "數(shù)組初始化,并通過日期函數(shù)得到當(dāng)前月份的數(shù)字,輸出相關(guān)數(shù)組下標(biāo)的內(nèi)容<br>";

  echo "############################################################<br>";

  $arrMonth=array("January","February","March","April","May","June","July","August","September","October","November","December");

  date_default_timezone_set("utc"); //設(shè)置默認(rèn)時區(qū)

  $month=date("m");

  echo "數(shù)組結(jié)構(gòu)為";

  print_r($arrMonth);

  echo "當(dāng)前是第".$month."月,他的英文是".$arrMonth[$month-1]."<br>";

  echo "############################################################<br><br><br>";

  /*

  *數(shù)組初始化,并定義鍵,然后通過鍵值訪問數(shù)組

  */

  echo "數(shù)組初始化,并定義鍵,然后通過鍵訪問數(shù)組<br>";

  echo "############################################################<br>";

  $arrMonth=array("Jan"=>"January","Feb"=>"February","Mar"=>"March","Apr"=>"April","May"=>"May","Jun"=>"June","Jul"=>"July"

  ,"Aug"=>"August","Sept"=>"Septmber","Oct"=>"October","Nov"=>"November","Dec"=>"December"

  );

  echo "通過英文縮寫Aug 訪問數(shù)組".$arrMonth["Aug"]."<br>";

  echo "############################################################<br><br><br>";

  echo "下面通過Foreach遍歷數(shù)組<br>";

  echo "############################################################<br>";

  foreach ($arrMonth as $key=>$value){

  echo "  =>鍵是$key,值是$value<br>";

  }

  echo "############################################################<br><br><br>";

  /*

  * 定義多維數(shù)組

  */

  echo "定義二維數(shù)組<br>";

  $arrArea=array("華東地區(qū)"=>array("福建","浙江"),"華北地區(qū)"=>array("北京","天津"));

  echo "華東地區(qū)=>".$arrArea["華東地區(qū)"][0]

  ?>


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