将数组值与字符串进行比较 [英] Compare array value with string

问题描述

我有一个包含各种产品的数组

$ inventory = array（）;

$ inventory [0] =" whatever1";

等

我有一个包含各种值的数组

$ quantity = array（100,200,300）;


我打电话给来自$ _POST [itemname]形式的值;说

我指定一个变量

$ var1 =" $ _ POST [itemname]" ;;


我要比较一下具有数组值的输入值例如

for（$ i = 0; $ i< $ inventory_total; $ i ++）{

if（$ inventory [$ i] = = $ item）{code}

}

但是，这总是负数，因为我认为我无法将数组项与字符串进行比较。

到目前为止我唯一发现的是mplode。声明

但我想比较单个数组项而不是由所有数组组成的字符串。

有人可以建议一个简单的转换，以便我可以比较值吗？

解决方案

inventory = array（）;

inventory [0] =" whatever1";

等

我有一个包含各种值的数组

quantity = array（100,200,300）;


我从表单中调用一个值

I have an array containing the various products
$inventory = array();
$inventory[0] = "whatever1";
etc
I have an array containing various values
$quantity = array(100,200,300);

I call in a value from a form $_POST[itemname]; say
I assign a variable
$var1="$_POST[itemname]";

I want to compare the input value with the array value e.g.
for($i = 0;$i<$inventory_total;$i++) {
if($inventory[$i] == $item) { code }
}
However, this is always negative as I believe I cannot compare an array item with a string.
The only thing I''ve found so far is the "mplode" statement
But I want to compare individual array items not a string composed of all of them.
Can anyone suggest a simple conversion so that I can compare values?

解决方案

inventory = array();

inventory[0] = "whatever1";
etc
I have an array containing various values

quantity = array(100,200,300);

I call in a value from a form

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