How get size_of $_GET
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26-12-2019 - |
题
I want to get the number of values that were submitted via my $_GET. I'm going to be using a for loop and every 7 are going to be saved to a class. Does anyone know how to find the Size_of the $_GET array? I looked through this info $_GET Manual, but don't see what I'm looking for.
This is a code snippet that I started in the class that I go to after the submit.
for($i=0;$i<$_GET<size>;$i++) {
$ID = $_GET["ID"][$i];
$Desc = $_GET["Desc"][$i];
$Yevaluation = $_GET["Yevaluation"][$i];
$Mevaluation = $_GET["Mevaluation"][$i];
$Cevaluation = $_GET["Cevaluation"][$i];
$Kevaluation = $_GET["Kevaluation"][$i];
$comment = $_GET["comment"][$i];
//saving bunch to class next
}
其他提示
count($_GET["ID"])
could work. However, then you have to be sure that each index contains the same number of elements.
More secure would be
min(count($_GET["ID"]), count($_GET["Desc"]), ...)
With array_map
this can probably be shortcut to something like:
min(array_map(count, $_GET))
Try thinking through the last one, if it seems difficult to you. It's called functional programming and it's an awesome way to shortcut some stuff. In fact array_map
calls another function on each element of an array. It's actually the same as:
$filteredGet = array();
foreach ($element in $_GET) { // this is the array_map part
$filteredGet[] = count($element);
}
min($filteredGet);
Even better would be a structure where $i
is the first level of the array, but I think this is not possible (built-in) with PHPs $_GET
-parsing.