-1

嗨，我有这个并且工作正常，除了以下问题。

  echo "<form method='post' action=''>";
  echo "  <input type='text' name='txt1' id='txt1' value=".$_SESSION['txt1'].">";
  echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
  echo "</form>";
<A submit button here to send the form data>

问题是如果我在文本框中有一个值，例如John当我提交表单时，我会在文本框中保留原始用户键入的单词Jonn。但是，如果用户键入John Carter，则在提交表单时它只保留John。换句话说，文本只到文本之间的第一个空格。如何保留整个文本？

编辑

<?php
  if(isset($_POST['sendone']))
  {
    echo "Hello";
    echo "<form method='post' action=''>";
    echo "  <input type='text' name='txt1' id='txt1'>";
    echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
    echo "</form>";
  }
  if(isset($_POST['sendtwo']))
  {
    if($_POST['txt1']=='')
    {
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1'>";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Empty";
    }
    else
    {
      $_SESSION['txt1'] = $_POST['txt1'];
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1' value=".$_SESSION['txt1'].">";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Hit success!";      
    }
  }
  ?>
4

2 回答 2

1

在ingvalue=时，您需要在属性值周围加上单引号，否则生成的 HTML 无效.. 像这样：echo_SESSION["txt1"]

<?php
  if(isset($_POST['sendone']))
  {
    echo "Hello";
    echo "<form method='post' action=''>";
    echo "  <input type='text' name='txt1' id='txt1'>";
    echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
    echo "</form>";
  }
  if(isset($_POST['sendtwo']))
  {
    if($_POST['txt1']=='')
    {
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1'>";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Empty";
    }
    else
    {
      $_SESSION['txt1'] = $_POST['txt1'];
      echo "Hello";
      echo "<form method='post' action=''>";

      // check out this line here:
      echo "  <input type='text' name='txt1' id='txt1' value='" . htmlspecialchars($_SESSION['txt1']) . "'>";

      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Hit success!";      
    }
  }
?>

echo不过，在可能的情况下使用纯 HTML 并仅用于您希望包含的变量，它的性能（和可读性！）要高得多，这一点毫无价值。

于 2013-07-06T05:51:11.700 回答
0

检查此代码。

<form name="" method="post">
<input type="text" name="txt1">
<input type="submit" name="sendtwo">
<input type="submit" name="sendone">
</form>

<?php
  if(isset($_POST['sendone']))
  {
    echo "Hello";
    echo "<form method='post' action=''>";
    echo "  <input type='text' name='txt1' id='txt1'>";
    echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
    echo "</form>";
  }
  if(isset($_POST['sendtwo']))
  {
    if($_POST['txt1']=='')
    {
      echo "Hello";
      echo "<form method='post' action=''>";
      echo "  <input type='text' name='txt1' id='txt1'>";
      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Empty";
    }
    else
    {
      $_SESSION['txt1'] = $_POST['txt1'];
      echo "Hello";
      echo "<form method='post' action=''>";

      // check out this line here:
      echo "  <input type='text' name='txt1' id='txt1' value='" . $_SESSION['txt1'] . "'>";

      echo "  <input type='submit' name='sendtwo' id='sendtwo' value='TwoClick'>";
      echo "</form>";
      echo "Hit success!";      
    }
  }
?>
于 2013-07-06T05:35:57.037 回答