我必须从如下关联数组中取消设置所有“优先级”键和值。还找不到解决此问题的方法。您认为从整个数组中删除特定键值对的最佳方法是什么？$countries = array( 'AE' => array( 'postcode' => array( 'required' => false, 'hidden' => true, 'priority' => 40, ), 'city' => array( 'priority' => 50, ), ), 'AF' => array( 'state' => array( 'priority' => 65, ), ), 'AO' => array( 'postcode' => array( 'required' => false, 'hidden' => true, ), 'state' => array( 'label' => __( 'Province', 'woocommerce' ), 'priority' => 70, ), ), // + another arrays);编辑我发现的解决方案：foreach( $countries as $country => $fields ) { foreach( $fields as $field => $options ) { if ( isset( $options['priority'] ) ) { unset( $countries[$country][$field]['priority'] ); } }}但我仍然想知道是否有其他更好的选择，编写更少的代码，可能是一些预定义的函数。
3 回答
蝴蝶不菲
TA贡献1810条经验 获得超4个赞
<?php
$countries = array(
'AE' => array(
'postcode' => array(
'required' => false,
'hidden' => true,
),
'state' => array(
'priority' => 50,
),
),
'AF' => array(
'state' => array(
'priority' => 65,
),
),
'AO' => array(
'postcode' => array(
'required' => false,
'hidden' => true,
),
'state' => array(
'label' => ['Province', 'woocommerce'],
'priority' => 70,
),
),
// + another arrays
);
foreach($countries as &$country) {
if(array_key_exists('state', $country)
&& array_key_exists('priority', $country['state'])) {
unset($country['state']['priority']);
}
}
var_dump($countries);
一只甜甜圈
TA贡献1836条经验 获得超5个赞
<?php
$countries = array(
'AE' => array(
'postcode' => array(
'required' => false,
'hidden' => true,
),
'state' => array(
'priority' => 50,
),
),
'AF' => array(
'state' => array(
'priority' => 65,
),
),
'AO' => array(
'postcode' => array(
'required' => false,
'hidden' => true,
),
'state' => array(
'label' => ['Province', 'woocommerce'],
'priority' => 70,
),
),
// + another arrays
);
function unset_recursive(&$array, $key) {
unset($array[$key]);
foreach ($array as &$value) {
if (is_array($value)) {
unset_recursive($value, $key);
}
}
}
unset_recursive($countries, 'priority');
var_dump($countries);
开满天机
TA贡献1786条经验 获得超13个赞
请尝试一下，此代码可以搜索 2 的 deapth。
<?php
$countries = array(
'AE' => array(
'postcode' => array(
'required' => false,
'hidden' => true,
'priority' => 50,
),
'state' => array(
'priority' => 50,
),
),
'AF' => array(
'state' => array(
'priority' => 65,
),
),
'AO' => array(
'postcode' => array(
'required' => false,
'hidden' => true,
),
'state' => array(
'label' => ['Province', 'woocommerce'],
'priority' => 70,
),
),
// + another arrays
);
$lookKey = 'priority';
foreach($countries as $key => $country) {
if(array_key_exists($lookKey, $country)){
//echo "\n $key - $lookKey";
unset($countries[$key][$lookKey]);
}else{
foreach($country as $subKey => $ar){
if(array_key_exists($lookKey, $ar)){
//echo "\n $key - $subKey - $lookKey";
unset($countries[$key][$subKey][$lookKey]);
}
}
}
}
print_r($countries);
希望这对你有帮助。
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