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foreach中引用赋值
$temp = [
[ 'id' => 1, 'name' => 'name1', 'age' => 'age1', 'time' => 'time1' ],
[ 'id' => 2, 'name' => 'name2', 'age' => 'age2', 'time' => 'time2' ]
];
# 清空原数据
$data = $temp;
foreach ($data as &$value){
$value = [];
}
echo '<pre>';
print_r($data);
# 重置原数据
$data = $temp;
foreach ($data as &$value){
$value = [
'hobby' => 1
];
}
print_r($data);
# 追加原数据
$data = $temp;
foreach ($data as &$value){
$value['hobby'] = 1;
}
print_r($data);
Array
(
[0] => Array
(
)
[1] => Array
(
)
)
Array
(
[0] => Array
(
[hobby] => 1
)
[1] => Array
(
[hobby] => 1
)
)
Array
(
[0] => Array
(
[id] => 1
[name] => name1
[age] => age1
[time] => time1
[hobby] => 1
)
[1] => Array
(
[id] => 2
[name] => name2
[age] => age2
[time] => time2
[hobby] => 1
)
)
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