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?

phparrays

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。