<?php
function have_required($array , $required_fields) {
foreach($required_fields as $field) {
if(empty($array[$field])) return false;
echo $array[$field]."<br>";}//这是有变动的地方
} if($_POST['submitted']){//括号中的条件也改了下!
$did=" did ";
$didnt=" did not ";
echo '<p>Mr ';
echo have_required($_POST, array('name', 'email_address','age')) ? $didnt : $did;
echo ' have all the required fields.</p>';
}
?>
<form action="<?echo $PHP_SELF;?>" method=POST>
<p>
Name: <input type="text" name="name" ><br >
Email address: <input type="text" name="email_address" ><br>
Age (optional): <input type="text" name="age" >
</p> <p align="center">
<input type="submit" value="submit" name="submitted">
</p>
</form>
祝你好运罗!试试吧
function have_required($array , $required_fields) {
foreach($required_fields as $field) {
if(empty($array[$field])) return false;
echo $array[$field]."<br>";}//这是有变动的地方
} if($_POST['submitted']){//括号中的条件也改了下!
$did=" did ";
$didnt=" did not ";
echo '<p>Mr ';
echo have_required($_POST, array('name', 'email_address','age')) ? $didnt : $did;
echo ' have all the required fields.</p>';
}
?>
<form action="<?echo $PHP_SELF;?>" method=POST>
<p>
Name: <input type="text" name="name" ><br >
Email address: <input type="text" name="email_address" ><br>
Age (optional): <input type="text" name="age" >
</p> <p align="center">
<input type="submit" value="submit" name="submitted">
</p>
</form>
祝你好运罗!试试吧
解决方案 »
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