PHP+MYSQL 网站开发中遇到的问题汇总
1. PHP 中数组的使用
在操作数据库时,使用关联数组(associatively-indexed arrays)十分有帮助,下面我
们看一个基本的数字格式的数组遍历:
$temp[0] = "richmond";
$temp[1] = "tigers";
$temp[2] = "premiers";
for($x=0;$x
{
echo $temp[$x];
echo " ";
}
?>
然而另外一种更加节省代码的方式是:
$temp = array("richmond", "tigers", "premiers");
foreach ($temp as $element)
echo "$element ";
?>
foreach 还能输出文字下标:
$temp = array("club" => "richmond",
"nickname" =>"tigers",
"aim" => "premiers");
foreach ($temp as $key => $value)
echo "$key : $value ";