php入門學習知識點五關于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。

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)得到當前月份的數(shù)字，輸出相關數(shù)組下標的內容<br>";

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

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

date_default_timezone_set("utc");//設置默認時區(qū)

$month=date("m");

echo"數(shù)組結構為";

print_r($arrMonth);

echo"當前是第".$month."月,他的英文是".$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($arrMonthas$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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