簡介：這是html表單配合php實現一些簡易功能的例子的詳細頁面，介紹了和php,有關的知識、技巧、經驗，和一些php源碼等。
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這兩天學了寫表單。總結於此，以備忘。
例子一（POST提交表單）：
<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顯示出來的頁面。
提交表單後php處理出來的頁面。在這個例子中，我輸入一個單詞，然後給定一個長度，將單詞等分成該長度的塊。
示範了通過POST方法提交表單。
例子二(單選，GET接受表單)：
<form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="GET">Select your personality attributes:<br/><select name="att[]" ><option value="perky">perky</option><option value="morese">morose</option><option value="thinking">thinking</option><option value="feeling"> feeling</option><option value="thrifty">speed-thrift</option><option value="prodigal">shopper</option></select><br><input type ="submit" name="s" value="Record my personality"></form><?phpif (array_key_exists('s',$_GET)){$des = implode(' ', $_GET['att']);echo "You have a $des personality.";}?>
例子三（多選，GET接受表單）：
注意到此時<select name="att[]" multiple> 底線告訴GET你傳輸的是個數組，黑體字部分則是表示改選擇框為多選框
<form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="GET">Select your personality attributes:<br/><select name="att[]" multiple><option value="perky">perky</option><option value="morese">morose</option><option value="thinking">thinking</option><option value="feeling"> feeling</option><option value="thrifty">speed-thrift</option><option value="prodigal">shopper</option></select><br><input type ="submit" name="s" value="Record my personality"></form><?phpif (array_key_exists('s',$_GET)){$des = implode(' ', $_GET['att']);echo "You have a $des personality.";}?>
例子四（複選框checkbox）： 同樣name="att[]"是告訴GET你傳輸的是一個數組， checked 則表示該選項為初始預設選擇，同樣上例，在標籤內加入 selected="selected"也可以
讓多選初始預設選擇。
<form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="GET">Select your personality attributes:<br/>perky<input type="checkbox" name="att[]" value="perky" checked /> <br/>morose<input type="checkbox" name="att[]" value="morose" checked /> <br/>thinking<input type="checkbox" name="att[]" value="thinking" /> <br/>feeling<input type="checkbox" name="att[]" value="feeling" /> <br/><br><input type ="submit" name="s" value="Record my personality"></form><?phpif (array_key_exists('s',$_GET)){echo "<pre>";print_r($_GET);echo "</pre>";if (is_null($_GET['att'])) exit;$des = implode(' ', $_GET['att']);echo "You have a $des personality.";}?>
例子五（單選框）: 注意，同一個選項即可的單選必須name相等
<form>男性：<input type="radio" checked="checked" name="Sex" value="male" /><br />女性：<input type="radio" name="Sex" value="female" /><br><hr>男性：<input type="radio" checked="checked" name="Se" value="male" /><br />女性：<input type="radio" name="Se" value="female" /></form><p>當使用者點擊一個選項按鈕時，該按鈕會變為選中狀態，其他所有按鈕會變為非選中狀態。</p>
例子六（stick form）：一個表格如何要實現之前輸入過的值在頁面重新整理後仍然存在可以如下
<?php $f = $_POST['fa'];?><form action = "<?php echo $_SERVER['PHP_SELF']; ?> " method="POST">temperature:<input type="text" name="fa" value="<?php echo $f;?>" />;<br/><input type="submit" name="Convert to Celsius" /></form><?php if (!is_null($f)){$c = ($f-32)*5/9;printf("%.2lf is %.2lfC",$f,$c);}?>
都是一些簡單的表單處理~
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