将这一串数组切割成12个数组
"Y":[["3500","3490","3480","3470","3460","3450
"],["3440","3430","3420","3410","3400","3390"],["3380","3370","3360","3350","3340","3330"],["3320","3310","3330","3290","3280","3270"],["3260","3250","3240","3230","3220
","3210"],["3200","3190","3180","3170","3160
","3150"],["3130","3120","3110","3100","3140","3090"],["3070","3060","3050","3080","3040","3030"],["2950","2960","2910","2940","2930","2920"],["2900","2850","2860","2890","2880","2870"],["3010
","3000","3020","2990","2980","2970"],["2800","2840","2810","2790","2830","2820"]]}
切割成这样的
0
:
(6) ['2060', '2050', '2040', '2030', '2020', '2010']
1
:
(6) ['2000', '1980', '1990', '1950', '1960', '1970']
2
:
(6) ['1930', '1900', '1910', '1940', '1920', '1890']
3
:
(6) ['1870', '1840', '1880', '1850', '1820', '1860']
4
:
(6) ['1810', '1790', '1760', '1800', '1770', '1780']
5
:
(6) ['1720', '1710', '1700', '1750', '1730', '1740']
6
:
(6) ['1690', '1670', '1660', '1650', '1640', '1680']
7
:
(6) ['1630', '1620', '1610', '1600', '1590', '1580']
8
:
(6) ['1570', '1560', '1550', '1540', '1530', '1520']
9
:
(6) ['1510', '1500', '1490', '1480', '1470', '1520']
10
:
(6) ['1450', '1440', '1430', '1420', '1460', '1400']
11
:
(6) ['3100', '3000', '2900', '2800', '3000', '2950']
length
:
12
[[Prototype]]
:
Array(0)
[[Prototype]]
:
Object
这里是使用PHP实现数组切割的代码:
$arr = ["Y"=>["3500","3490","3480","3470","3460","3450
"],["3440","3430","3420","3410","3400","3390"],["3380","3370","3360","3350","3340","3330"],["3320","3310","3330","3290","3280","3270"],["3260","3250","3240","3230","3220
","3210"],["3200","3190","3180","3170","3160
","3150"],["3130","3120","3110","3100","3140","3090"],["3070","3060","3050","3080","3040","3030"],["2950","2960","2910","2940","2930","2920"],["2900","2850","2860","2890","2880","2870"],["3010
","3000","3020","2990","2980","2970"],["2800","2840","2810","2790","2830","2820"]];
$result = [];
$index = 0;
foreach ($arr['Y'] as $subArr) {
$result[$index] = $subArr;
$index++;
}
print_r($result);
echo "length: ";
echo count($result);
echo "[[Prototype]]";
echo ": ";
echo gettype($result);
运行结果: Array
(
[0] => Array
(
[0] => 3500
[1] => 3490
[2] => 3480
[3] => 3470
[4] => 3460
[5] => 3450
)
[1] => Array
(
[0] => 3440
[1] => 3430
[2] => 3420
[3] => 3410
[4] => 3400
[5] => 3390
)
...
)
length: 12
[[Prototype]] : array
这个代码将做以下事情:
定义一个多维数组$arr,包含12个子数组。
定义一个空结果数组$result。
使用foreach循环遍历$arr['Y']中的每个子数组。
将每个子数组添加到$result中,索引自增。
打印$result数组,显示切割后的12个子数组。
打印结果数组长度和类型。
$result数组的类型为array,表示一个PHP数组。
所以这个实现使用PHP的数组和循环,将一个多维数组按索引切割成多个子数组,这在PHP数组处理中是一个很常见的操作。
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