PHP语法错误“意外$结束”
我有3个文件1)show_createtable.html 2)do_showfielddef.php 3)do_showtble.php
1)第一个文件用于为数据库创建一个新表,它是一个具有2个输入的表格,表名和字段数。 这工作很好!
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<h1>Step 1: Name and Number</h1>
<form method="post" action="do_showfielddef.php" />
<p><strong>Table Name:</strong><br />
<input type="text" name="table_name" size="30" /></p>
<p><strong>Number of fields:</strong><br />
<input type="text" name="num_fields" size="30" /></p>
<p><input type="submit" name="submit" value="go to step2" /></p>
</form>
</body>
</html>
2)该脚本验证字段并创建另一个表单来输入所有表格行。 这也适合工作!
<?php
//validate important input
if ((!$_POST[table_name]) || (!$_POST[num_fields])) {
header( "location: show_createtable.html");
exit;
}
//begin creating form for display
$form_block = "
<form action="do_createtable.php" method="post">
<input name="table_name" type="hidden" value="$_POST[table_name]">
<table cellspacing="5" cellpadding="5">
<tr>
<th>Field Name</th><th>Field Type</th><th>Table Length</th>
</tr>";
//count from 0 until you reach the number fo fields
for ($i = 0; $i <$_POST[num_fields]; $i++) {
$form_block .="
<tr>
<td align=center><input type="texr" name="field name[]"
size="30"></td>
<td align=center>
<select name="field_type[]">
<option value="char">char</option>
<option value="date">date</option>
<option value="float">float</option>
<option value="int">int</option>
<option value="text">text</option>
<option value="varchar">varchar</option>
</select>
</td>
<td align=center><input type="text" name="field_length[]" size="5">
</td>
</tr>";
}
//finish up the form
$form_block .= "
<tr>
<td align=center colspan=3><input type ="submit" value="create table">
</td>
</tr>
</table>
</form>";
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Create a database table: Step 2</title>
</head>
<body>
<h1>defnie fields for <? echo "$_POST[table_name]"; ?>
</h1>
<? echo "$form_block"; ?>
</body>
</html>
问题在这里3)这个表单创建表并将它们输入到数据库中。 第37行出现错误“解析错误:语法错误,意外$ end in /home/admin/domains/domaina.com.au/public_html/do_createtable.php on line 37”
<?
$db_name = "testDB";
$connection = @mysql_connect("localhost", "admin_user", "pass")
or die(mysql_error());
$db = @mysql_select_db($db_name, $connection)
or die(mysql_error());
$sql = "CREATE TABLE $_POST[table_name](";
for ($i = 0; $i < count($_POST[field_name]); $i++) {
$sql .= $_POST[field_name][$i]." ".$_POST[field_type][$i];
if ($_POST[field_length][$i] !="") {
$sql .=" (".$_POST[field_length][$i]."),";
} else {
$sql .=",";
}
$sql = substr($sql, 0, -1);
$sql .= ")";
$result = mysql_query($sql, $connection) or die(mysql_error());
if ($result) {
$msg = "<p>" .$_POST[table_name]." has been created!</p>";
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Create A Database Table: Step 3</title>
</head>
<body>
<h1>Adding table to <? echo "$db_name"; ?>...</h1>
<? echo "$msg"; ?>
</body>
</html>
$result = mysql_query($sql, $connection) or die(mysql_error());
if ($result) {
$msg = "<p>" .$_POST[table_name]." has been created!</p>";
}
你在最后一条if语句中缺少一个}
,你的for循环也缺少一个}
for ($i = 0; $i < count($_POST[field_name]); $i++) {
$sql .= $_POST[field_name][$i]." ".$_POST[field_type][$i];
if ($_POST[field_length][$i] !="") {
$sql .=" (".$_POST[field_length][$i]."),";
} else {
$sql .=",";
}
}
此错误消息意味着控制结构块未正确关闭。 在你的情况下,收盘}
的有些像你的控制结构for
循环或在最后if
缺少。
您应该使用适当的缩进和一个突出显示支架对的编辑器,以获得视觉帮助以避免此类错误。
您必须关闭for表达式块:
for ($i = 0; $i < count($_POST[field_name]); $i++) {
$sql .= $_POST[field_name][$i]." ".$_POST[field_type][$i];
// ...
}
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