foreach quesiton

问题描述

代码：

<？php

$ zct2 = array（Canada，France，Germany，Italy，

" Netherlands"，" Spain"，" United Kingdom"）;


$ sra = geoip_country_name_by_name（$ _ SERVER [''REMOTE_ADDR''' ]）;


foreach（$ zct2 as $ c）{

if（$ c = $ sra）{

echo $ c;

}

}

未设置$ c

？>

输出：

United StatesUnited StatesUnited StatesUnited StatesUnited

StatesUnited StatesUnited States


问题：

why我多次得到美国，当$ c永远不等于

美国，$ sra等于，但不是$ c

code:
<?php
$zct2 = array ("Canada", "France", "Germany", "Italy",
"Netherlands", "Spain", "United Kingdom");

$sra = geoip_country_name_by_name($_SERVER[''REMOTE_ADDR'']);

foreach ($zct2 as $c) {
if ($c = $sra) {
echo $c;
}
}
unset $c
?>
output:
United StatesUnited StatesUnited StatesUnited StatesUnited
StatesUnited StatesUnited States

question:
why do I get United States that many times, when $c never equivals
UnitedStates at all, $sra is equval that, but not $c

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