php 如何从数组中删除键并更新索引?
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时间:2020-08-25 00:51:34 来源:igfitidea点击:
How to delete key from array and update index?
提问by lisovaccaro
$array = array('a', 'b','c');
unset($array[0]);
var_dump($array);
Yields:
array(1) {
[1]=>
'b'
'c'
}
How do I, remove array[0] to get ['bb','cc'] (no empty keys):
我如何删除数组 [0] 以获取 ['bb','cc'](无空键):
array(1) {
'b'
'c'
}
回答by Zhafur
Check this:
检查这个:
$array = array('a', 'b','c');
unset($array[0]);
$array = array_values($array); //reindexing
回答by VoteyDisciple
Take a look at array_splice()
看一眼 array_splice()
$array = array_splice($array, 0, 1);
If you happen to be removing the first element specifically (and not an arbitrary element in the middle of the array), array_shift()is more appropriate.
如果您碰巧专门删除第一个元素(而不是数组中间的任意元素),array_shift()则更合适。

