[英]How to unset value array in PHP
這是我的數組:
array(
"tracker"=> array(
0=> array(
0=> "[" ,
1=> "asiangames" ,
2=> "," ,
3=> "asiangames2018" ,
4=> "," ,
5=> "asian" ,
6=> "]"
),
1=> array(
0=> "[" ,
1=> "2019gantipresiden" ,
2=> "]"
)
)
)
如何取消設置的值,如果不字PHP例如,在這個數組未設置值[
和]
和,
, ?
?
PHP具有一項功能,可以通過一個雄辯的調用來直接為您提供干凈,直接的代碼片段,從而為您完成此任務。
迭代tracker
每個子數組,並將值的“黑名單”用作array_diff()
的第二個參數。 foreach()
聲明中的&
之前的$tracker
使變量“可通過引用修改”-有效地,這意味着新數據將應用於原始數組的$tracker
而不是原始輸入數組的副本。
代碼:( 演示 )
$array = [
"tracker" => [
["[", "asiangames", ",", "asiangames2018", ",", "asian", "]"],
["[", "2019gantipresiden", "]"]
]
];
foreach ($array["tracker"] as &$tracker) {
$tracker = array_diff($tracker, ["[", ",", "]"]);
}
var_export($array);
輸出:
array (
'tracker' =>
array (
0 =>
array (
1 => 'asiangames',
3 => 'asiangames2018',
5 => 'asian',
),
1 =>
array (
1 => '2019gantipresiden',
),
),
)
您需要使用如下所示的foreach()
:
$remove_values = array('[',']',',');
foreach($your_array['tracker'] as &$value){
foreach($value as $key=>$val){
if(in_array($val,$remove_values)){
unset($value[$key]);
}
}
}
print_r($your_array);
輸出: -https : //3v4l.org/1FaO1
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