我想知道如何为 if-else 语句构建正确的语法，或者我的代码中是否缺少某些内容。
<?php
include "../dbcon.php";
session_start();
ob_start();
$sql = mysqli_query($con,"SELECT * FROM clientdocuments WHERE docID = $_POST[docID]");
$rows = mysqli_fetch_array($sql, MYSQLI_ASSOC);
//IF CSS input value is filled
if(!empty($_POST)){
$output = '';
$message = '';
$docID = mysqli_real_escape_string($con, $_POST["docID"]);
$docSIG_Contract = mysqli_real_escape_string($con, $_POST["docSIG_Contract"]);
//I don't get what this "if(isset($_POST["docID"])){" purpose (Sorry very new to php)
if(isset($_POST["docID"])){
if (!empty($docID)) {
$query = "UPDATE clientdocuments(docID, docSIG_Contract) VALUES('$docID', '$docSIG_Contract');"; //UPDATE ONCE docID ALREADY EXIST ON THE DATABASE
} else {
$query = "INSERT INTO clientdocuments(docID, docSIG_Contract) VALUES('$docID', '$docSIG_Contract');"; //INSERT IF THE docID doesn't exist yet
}
$str = mysqli_query($con,$query);
if(!$str){
echo 'FAILED';
}
}else{
header('HTTP/1.1 500 Internal Server Booboo');
header('Content-Type: application/json; charset=UTF-8');
}
}
?>
删除这个 if 语句： if (!empty($docID)) {
确保您随每个帖子一起发送更新“docID”值
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我来说两句