从 PHP 数组中删除零值
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Remove zero values from a PHP array
提问by Elitmiar
I have a normal array like this
我有一个像这样的普通数组
Array
(
[0] => 0
[1] => 150
[2] => 0
[3] => 100
[4] => 0
[5] => 100
[6] => 0
[7] => 100
[8] => 50
[9] => 100
[10] => 0
[11] => 100
[12] => 0
[13] => 100
[14] => 0
[15] => 100
[16] => 0
[17] => 100
[18] => 0
[19] => 100
[20] => 0
[21] => 100
)
I need to remove all 0's from this array, is this possible with a PHP array function
我需要从这个数组中删除所有的 0，这是否可以使用 PHP 数组函数
回答by Gumbo
array_filterdoes that. If you don't supply a callback function, it filters all values out that equal false(boolean conversion).
array_filter这样做。如果您不提供回调函数，它会过滤掉所有等于false（布尔转换）的值。
回答by Jon Winstanley
You can just loop through the array and unset any items that are exactly equal to 0
您可以循环遍历数组并取消设置完全等于 0 的任何项目
foreach ($array as $array_key => $array_item) {
if ($array[$array_key] === 0) {
unset($array[$array_key]);
}
}
回答by thecodedeveloper.com
First Method:
第一种方法：
<?php
$array = array(0,100,0,150,0,200);
echo "<pre>";
print_r($array);
echo "</pre>";
foreach($array as $array_item){
if($array_item==0){
unset($array_item);
}
echo"<pre>";
print_r($array_item);
echo"</pre>";
}
?>
Second Method:Use array_difffunction
第二种方法：使用array_diff函数
<?php
$array = array(0,100,0,150,0,200);
$remove = array(0);
$result = array_diff($array, $remove);
echo"<pre>";
print_r($result);
echo"</pre>";
?>
回答by Slav
bit late, but copy & paste:
有点晚了，但复制并粘贴：
$array = array_filter($array, function($a) { return ($a !== 0); });
回答by Amir Fo
You can use this:
你可以使用这个：
$result = array_diff($array, [0]);
回答by Geoffray Warnants
If you don't care about preserving key to data correlations, you can use this single line trick :
如果你不关心保留数据相关性的关键，你可以使用这个单行技巧：
<?php
$a = array(0, 150, 0, 100, 0, 100, 0, 100);
$b = explode('][', trim(str_replace('[0]', '', '['.implode('][', $a).']'), '[]'));
print_r($b); // Array ([0] => 150 [1] => 100 [2] => 100 [3] => 100)
回答by krez
$array = array_filter($array, function($a) { return ($a !== 0); });"
if you want to remove zero ANDempty values, the right code is:
如果要删除零和空值，正确的代码是：
$array = array_filter($array, function($a) { return ($a !== 0 AND trim($a) != ''); });
回答by Jumper Pot
This one is also an effective solution to remove unwanted value.
这也是删除不需要的值的有效解决方案。
<?php
$array = array(0,100,0,150,0,200);
foreach($array as $a){
if (false !== $key = array_search("0", $array)){
unset($array[$key]);
}
}
print_r($array);
?>
