- 数值数组 – 带有数字 ID 键的数组
- 关联数组 – 带有指定的键的数组，每个键关联一个值
- 多维数组 – 包含一个或多个数组的数组
看具体实例：
创建数组
<?php
//方式 1
$cars = array(" Volvo ","BMW","Toyota");
//方式 2
$cars[0] = "Volvo";
$cars[1] = "BMW";
$cars[2] = "Toyota";
//方式 3
$cars = [
"Volvo",
"BMW",
"Toyota",
]
?>
<?php
$cars = array("Volvo","BMW","Toyota");
echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . ".";
?> 获取数组的长度 – count () 函数
<?php
$cars = array("Volvo","BMW","Toyota");
echo count($cars);
?> 遍历数组
<?php
$cars = array("Volvo","BMW","Toyota");
//第一种方式
$arrlength = count($cars);
for($x = 0 ;$x < $arrlength ;$x++) {
echo $cars[$x];
echo "<br>";
}
//第二种方式
foreach ($cars as $key => $value){
echo $value;
echo "<br/>";
}
?> array_chunk () 函数 (把数组分割为带有两个元素的数组块)
<?php
$cars = array("Volvo","BMW","Toyota","Honda","Mercedes"," Opel ");
print_r(array_chunk($cars,2));
?> array_keys () 函数 (返回包含数组中所有键名的一个新数组)
<?php
$a = array("Volvo"=>"XC90","BMW"=>" X5 ","Toyota"=>"Highlander");
print_r(array_keys($a));
?> array_push () 函数 (向数组尾部插入 “blue” 和 “yellow”)
<?php
$a = array("red","green");
array_push($a,"blue","yellow");
print_r($a);
?> array_pop () 函数 (删除数组中的最后一个元素)
<?php
$a = array("red","green","blue");
array_pop($a);
print_r($a);
?> array_reverse () 函数 (返回翻转顺序的数组)
<?php
$a = array("a"=>"Volvo","b"=>"BMW","c"=>"Toyota");
print_r(array_reverse($a));
?> sort () 函数 (对数组中的元素按字母进行升序排序)
<?php
$cars = array("Volvo","BMW","Toyota");
sort($cars);
?> 简单更新部分 PHP 常用数组基础，如需了解更多请参考手册，或者关注公众号 ( Laravel 技术社区 / PHP 在线中心 )，管理员将定期更新你不知道或不常用的知识点，帮助大家快速提升。
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