本文共 3004 字，大约阅读时间需要 10 分钟。

1、创建一个空数组：

$result= array();

print_r($result); 

输出结果：       Array()

2、创建，初始化数组：

$result= array("And","You ");

print_r($result);

输出结果：      Array ( [0] => And [1] => You )

3、数组compact

$number = "1,3,5,7,9";

$string = "I'm PHPer"; $array = array("And","You?"); $newArray = compact("number","string","array"); print_r ($newArray);

输出结果：     Array ( [number] => 1,3,5,7,9 [string] => I'm PHPer [array] => Array ( [0] => And [1] => You? ) )

 

4、array_combine()

     array_combine()——将两个数组重组成一个数组,一个作键值一个做的值：array array_combine ( array $keys , array $values ) <?PHP $number = array("1","3","5","7","9"); $array = array("I","Am","A","PHP","er"); $newArray = array_combine($number,$array); print_r ($newArray); ?>

输出结果：

Array ( [1] => I [3] => Am [5] => A [7] => PHP [9] => er )

 

5、

range()函数——创建指定范围的数组：

 

$array1 = range(0,100,10);//0为起始值，100为结束值，10为步进值(默认步进值为1).

print_r($array1); echo"<br />"; $array2 = range("A","Z"); print_r($array2); echo "<br />"; $array3 = range("z","a"); print_r($array3);

输出结果：

Array ( [0] => 0    [1] => 10           [2] => 20         [3] => 30 [4] => 40 [5] => 50 [6] => 60 [7] => 70 [8] => 80 [9] => 90 [10] => 100 )

 

Array ( [0] => A       [1] => B       [2] => C         [3] => D        [4] => E        [5] => F       [6] => G        [7] => H [8] => I [9] => J [10] => K [11] => L [12] => M [13] => N [14] => O [15] => P [16] => Q [17] => R [18] => S [19] => T [20] => U [21] => V [22] => W [23] => X [24] => Y [25] => Z )

6、array_fill() array_fill()函数——填充数组函数：

$array = range(1,10);

$fillarray = range("a","d"); $arrayFilled = array_fill(0,5,$fillarray);//这里的$fillarray可以是字符串，如"test".   （0,5） 0-4 相当于key值

echo "<pre>"; print_r ($arrayFilled); echo "</pre>"; $keys = array("string","2",9,"SDK","PK"); $array2 = array_fill_keys($keys,"testing"); echo "<pre>"; print_r ($array2); echo "</pre>";

 

输出结果：

Array(    [0] => Array        (            [0] => a            [1] => b            [2] => c            [3] => d        )    [1] => Array        (            [0] => a            [1] => b            [2] => c            [3] => d        )    [2] => Array        (            [0] => a            [1] => b            [2] => c            [3] => d        )    [3] => Array        (            [0] => a            [1] => b            [2] => c            [3] => d        )    [4] => Array        (            [0] => a            [1] => b            [2] => c            [3] => d        ))

Array(    [string] => testing    [2] => testing    [9] => testing    [SDK] => testing    [PK] => testing)

 

7、数组的遍历

foreach遍历 foreach (array_expression as $value){} foreach (array_expression as $key => $value){} 复制代码 代码如下: <?PHP $speed = array(50,120,180,240,380); foreach($speed as $keys=>$values){ echo $keys."=>".$values."<br />"; } ?>

0=>50

1=>120 2=>180 3=>240 4=>380

 

另一种方法：

$speed = array(50,120,180,240,380);

foreach($speed as $keys=>$values){        echo $values."<p>"; }

输出结果：

50

120

180

240

380

 

 

8、//for 循环遍历数组

//声明一个数组并且初始化

$array=array('Google','Chrome','Android','Youtube','Gmail');

//使用for循环遍历各数组元素，count()用来计算数组的长度

for($i=0;$i<count($array);$i++){

//打印数组的元素的值

echo $array[$i],"<br>";

}

更多请看网址：

 

转载地址：http://gmupi.baihongyu.com/