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How to delete values in a two-dimensional array in php
- 王林Original
- 2020-11-09 09:16:242849browse
php method to delete values in a two-dimensional array: you can use the foreach statement combined with the unset function to delete, such as [foreach($array as $key=>$value){if($key== 'a')[unset($array[$key]);]}].
The unset() function is used to clear and destroy variables. For unused variables, we can use unset() to destroy elements.
(Learning video recommendation: java video tutorial)
The same principle as deleting a one-dimensional array, you can delete the corresponding element through the key name of the array.
Example:
<?php
$array = array('a'=>array('a1','a2'),'b'=>array('b1','b2'));
foreach($array as $key=>$value){
if($key == 'a')[
unset($array[$key]);
}
//或者删除二维数组中二维中的元素
if($key == 'a')[
unset($array[$key][0]);
}
}
print_r($array);
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