[英]Checking if array value is empty in twodimensional array
I have next code 我有下一个代码
$rez1 = mysqli_query($kon, "SELECT producten.*,producten.id as prodID, product_shop_tt.*, COUNT(order_details.id) AS order_count from producten
INNER JOIN product_shop_tt ON producten.id = product_shop_tt.product_id
LEFT JOIN order_details ON order_details.product_shop_tt_id = product_shop_tt.id
WHERE product_shop_tt.shop_id = '" . $red['id'] . "'
GROUP BY producten.id
ORDER BY order_count DESC");
$brRez = mysqli_num_rows($rez1);
$i = 1;
while($red1 = mysqli_fetch_assoc($rez1)){
$brProizvoda = $red1["order_count"];
if($brProizvoda >= 30){
$pozadina = "background-color:#C4C4B3;border-radius:10px";
}elseif(($brProizvoda < 30) && ($brProizvoda > 10)){
$pozadina = "background-color:#E0E0D8;border-radius:10px";
}else{
$pozadina = "background-color:#FFFFFF;border-radius:10px";
}
//Listamo proizvode
echo "<div class=\"col-xs-12 col-sm-12\" style=\"". $pozadina .";margin-bottom:1px;\">
<input class=\"hidd\" type=\"hidden\" name=\"txtHidd[". $red1["prodID"] ."][kolicina]\" id=\"txtHidd". $i ."\" value=\"\"/>
<div class=\"col-sm-2 col-xs-5\" style=\"margin-left:-25px;\">
<div class=\"form-group\" style=\"margin:0;\">
<input id=\"quan". $i ."\" class=\"form-control\" type=\"number\" value=\"0\" min=\"0\" max=\"10\" onChange=\"proces('quan".$i."', 'txtHidd".$i."'); \" style=\"margin:5px 0 5px 0;\"/>
</div>
</div>
<div class=\"col-sm-10 col-xs-7\" style=\"padding-left:0;\">
". $red1["naam"] . " (<strong>". $red1["price"] . "</strong>€) -- <i>". $red1["details"] . "</i>
</div>
</div>";
$i++;
}
//Dugmad (Nazad i naruci)
echo "<div style=\"clear:both;\"></div><div class=\"footer\" style=\"position: fixed;bottom: 0;width: 100%;left:0;\">
<a href=\"home.php\" title=\"Ga terug\" class=\"col-xs-6 col-sm-6 btn btn-info\"><span class=\"glyphicon glyphicon-chevron-left\"></span> Niets toevoegen</a>
<button class=\"col-xs-6 col-sm-6 btn btn-danger\" type=\"submit\" name=\"btnNaruci\" id=\"btnNaruci\">
Leg in winkelmand <span class=\"glyphicon glyphicon-chevron-right\"></span><span class=\"glyphicon glyphicon-chevron-right\"></span><span class=\"glyphicon glyphicon-chevron-right\"></span>
</button>
</div></form>";
I want now to check if every kolicina value in array txtHidd[". $red1["prodID"] ."][kolicina] is empty. 我现在要检查数组txtHidd [“。$ red1 [” prodID“]。”] [kolicina]中的每个kolicina值是否为空。
I'm trying with 我正在尝试
$empty = array_filter($_POST["txtHidd"]);
if (empty($empty)) {
echo "Empty";
}
This way I get empty if all values are empty, but i also get empty if one or more values are equal to something else. 这样,如果所有值都为空,我将为空,但是如果一个或多个值等于其他值,我也将为空 。 How to get empty only if all kolicina values in array txtHidd[". $red1["prodID"] ."][kolicina] are empty? 仅当数组txtHidd [“。$ red1 [” prodID“]。”] [kolicina]中的所有kolicina值都为空时,才如何获取空?
Use array_column()
to create array of all present kolicina
values. 使用array_column()
创建所有当前kolicina
值的数组。 Then use array_filter()
to filter out all values, that You consider "empty". 然后使用array_filter()
过滤掉您认为“空”的所有值。 If this results in an empty array, then all $txtHidd[...]['kolicina']
are empty. 如果这导致一个空数组,则所有$txtHidd[...]['kolicina']
都是空的。
EDIT: 编辑:
Ok, let's say, You have this array: 好的,假设,您有以下数组:
$_POST['txtHidd'] = array(
array('a' => 'b', 'c' => 'd', 'kolicina' => ''),
array('a' => 'f', 'c' => '1', 'kolicina' => 'abc'),
array('a' => 'x', 'c' => '6', 'kolicina' => NULL),
array('a' => 'o', 'c' => 'u', 'kolicina' => 'xxx')
);
You want to know, if all the kolicina
values are empty, is that so? 您想知道,如果所有kolicina
值都为空,是吗? So You use: 因此,您使用:
$kolicinas = array_column($_POST['txtHidd'], 'kolicina');
This gives you: 这给您:
array('', 'abc', NULL, 'xxx')
Now You are asking, if all those values are empty. 现在,您要问是否所有这些值都为空。 So You do this: 所以你这样做:
$non_empty_kolicinas = array_filter($kolicinas);
You get: 你得到:
array('abc', 'xxx')
That means, that there exist non-empty kolicinas (whatever it is :-). 这意味着,存在非空的kolicinas(无论是什么:-)。 Maybe I misunderstood Your problem, in such a case correct me, please! 也许我误解了您的问题,在这种情况下,请纠正我!
Use this code 使用此代码
if(isset($_POST["txtHidd"])){
echo "Not Empty";
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.