我对php很新。但当我学会编程时,它是在TI-83计算器上。使用TI83,他们可以使用if-then语句。我正在编写一些代码来检查目录是否已经创建,如果没有创建它。我需要它以任何一种方式运行代码的后半部分。这是代码。
<?php
$dir = "/Applications/XAMPP/xamppfiles/htdocs/upload/$_POST[Itemid]/" ;
if (!file_exists($dir) and !is_dir($dir)) {
$upload_dir = mkdir($dir, 0777);
}else{
foreach ($_FILES["file"]["error"] as $key => $error) {
if ($error == UPLOAD_ERR_OK) {
$filename = $_FILES["file"]["name"][$key];
$filetemp = $_FILES["file"]["tmp_name"][$key];
$filetype = $_FILES["file"]["type"][$key];
$filesize = $_FILES["file"]["size"][$key];
if (file_exists($dir . $filename))
{
echo $filename . " already exists. <br><br>";
}
else
{
echo "Upload: " . $filename . "<br>";
echo "Type: " . $filetype . "<br>";
echo "Size: " . ($filesize / 1024) . " kB<br>";
echo "Temporarily Stored in: " . $filetemp . "<br>";
move_uploaded_file($filetemp,"$dir/$filename");
echo "uploaded the file \"" . $filename. "\" to the \"/Applications/XAMPP/xamppfiles/htdocs/upload/\" Directory<br>" ;
$con=mysqli_connect("localhost","root","","Inventory");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql="INSERT INTO ListPics (`1`, `Item_ItemID`)
VALUES
('$dir$filename', '$_POST[Itemid]')";
if (!mysqli_query($con,$sql))
{
die('Error: ' . mysqli_error($con));
}
echo ($filename. " added to Database<br><br>");
mysqli_close($con);
}
}
}
}
?>
是的我知道这段代码不安全。它永远不会看到interweb(Reverently鞠躬并说“谢谢你Al Gore”)它将紧贴在VPN后面仅供个人使用。我只需要知道如何执行If If Statements
的PHP等价物答案 0 :(得分:0)
这很简单:
if(condition) {
/* do something if condition is true */
}
else {
/* do something else if condition is false */
}
/* do other stuff either way */
如果条件为false,如果您只想 ,那么您只需要else
。如果你想以任何一种方式进行,那么根本不要使用else
。