php结合表单实现一些简单功能的例子
日期：2012-01-07 浏览次数：20731 次
<html>
<head>
<title>
Chunkify Form
</title>
</head>
<body>
<form action="chunkify.php" method="POST">
Enter a word:
<input type="text" name="word"/><br/>
How long should be the chunks be?
<input type="text" name="number"/><br />
<input type="submit" value="Chunkify">
</form>
</body>
</html>
<html>
<head>
<title>
Chunkify Word
</title>
</head>
<?php
$word=$_POST["word"];
$number=$_POST["number"];
$chunks=ceil(strlen($word)/$number);
echo "The $number-letter chunks of "$word" are:<br/>\n";
for ($i = 0;$i<$chunks;$i++){
$chunk=substr($word,$i*$number,$number);
printf("%d: %s<br />\n",$i+1,$chunk);
}
?>
</body>
</html>
html显示出来的页面。
提交表单后php处理出来的页面。在这个例子中，我输入一个单词，然后给定一个长度，将单词等分成该长度的块。
演示了通过POST方法提交表单。
例子二(单选，GET接受表单)：
<form action="<?php echo $_SERVER["PHP_SELF"] ?>" method="GET">
Select your personality attributes:<br/>
<select name="att[]" >
<option value="perky">perky</option>
<option value="morese">morose</option>
<option value="thinking">thinking</option>
<option value="feeling"> feeling</option>
<option value="thrifty">speed-thrift</option>
<option value="prodigal">shopper</option>
</select>
<br>
<input type ="submit" name="s" value="Record my personality">
</form>
<?php
if (array_key_exists("s",$_GET)){
$des = implode(" ", $_GET["att"]);
echo "You have a $des personality.";
}
?> 
例子三（多选，GET接受表单）：
注意到此时<select name="att[]" multiple> 下划线告诉GET你传输的是个数组，黑体字部分则是表示改选择框为多选框
<form action="<?php echo $_SERVER["PHP_SELF"] ?>" method="GET">
Select your personality attributes:<br/>
<select name="att[]" multiple>
<option value="perky">perky</option>
<option value="morese">morose</option>
<option value="thinking">thinking</option>
<option value="feeling"> feeling</option>
<option value="thrifty">speed-thrift</option>
<option value="prodigal">shopper</option>
</select>
<br>
<input type ="submit" name="s" value="Record my personality">
</form>
<?php
if (array_key_exists("s",$_GET)){
$des = implode(" ", $_GET["att"]);
echo "You have a $des personality.";
}
?>
