I'd change if (isset($_POST['Submit')) to if (isset($_POST['sendIt')) and then i'd change <input type="submit" name="Submit" value="Submit" /> to: <input type="submit" name="sendIt" value="Submit" /> This way your form has it's own unique send value rather than th...
关于PHP的isset()函数 1<!DOCTYPE html>2<html>3<head>4<title></title>5<metacharset="utf-8">6</head>7<body>8<formaction=""method="get">9<selectname="select_option">//html语法:<select><option></option></select>10<optionvalue="">请选择城市</option>//默认第一个显示为:请选择城市11...
What I want is some echos and a table to not appear when the script is open but I do want it to show when the submit button for the form has been clicked. The problem is though that when I include the if(isset($_POST['submit'])) function, when I click on the...
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>"> <label for="username">Username:</label> <input type="text" name="username" id="username"> <label for="password">Password:</label> <input type="password" name="password" id="password"> <input type="submit" valu...
我认为只有一种情况下他们会有不同,就是当 $_PSOT['submit']=""时,也就是$_PSOT['submit']是空字符串时,isset($_PSOT['submit'])值为 true,if(isset($_PSOT['submit']))判断为真,而if($_PSOT['submit'])判断为假,这是由于php的类 型戏法决定的。如果你的一个<form>的<input type='submit' ...
<form action="index.php" method="POST"><b>Name1:</b> <select name="moods[Name1]"><option value="">Please select:</option><option value="happy">Happy</option><option value="bored">Bored</option></select><br><br><b>Name2:</b> <select name="moods[Name2]">...
未定义的username和password，是因为你的form里面没有包含这两个控件。你试着去输出你提交过来的值都有哪些，比如用print_r();或var_dump函数去输出$_REQUEST
$reply_user . '.</textarea></center> <center><input type="submit" name="post2" class="post_text" value="Post"></center> </form>'; } ?> 我该如何解决? 原文由 PHP Web Dev 101 发布,翻译遵循 CC BY-SA 4.0 许可协议 phphtml...
<input type=”hidden” name=”token” value=”<?phpechoToken::generate();?>“> <p class=”login button”> <input type=”submit” value=”Login”> </p> <p class=”change_link”> Not a member yet ? Join us </p> </form> ...
title></head><body><h2>Validation Form</h2><formaction="index/index.php"method="get">// The form index.php is stored in the folder index NAME:<inputtype="text"name="name"/><br/>E-Mail:<inputtype="text"name="email"/><br/><inputtype="submit"value="validate"></form></body><...