如果变量大于零，如何向php显示/隐藏html块代码_Php_Parsing

如果变量大于零，如何向php显示/隐藏html块代码

php parsing

如果变量大于零，如何向php显示/隐藏html块代码,php,parsing,Php,Parsing,我想在重新创建下面的代码时寻求帮助。我正在将表单数据从page1.php传输到page2.php，并将表单数据从page1.php传输到page2.php。这种情况是，只要变量ddList1大于0，它就会执行下面的代码，并在html中显示它。否则，当变量设置为0时，它将隐藏html代码块 <?php if($_POST["ddList1"] > 0) echo $_POST["ddList1"]; ?> <table>

我想在重新创建下面的代码时寻求帮助。我正在将表单数据从page1.php传输到page2.php，并将表单数据从page1.php传输到page2.php。这种情况是，只要变量ddList1大于0，它就会执行下面的代码，并在html中显示它。否则，当变量设置为0时，它将隐藏html代码块

    <?php
        if($_POST["ddList1"] > 0)
         echo $_POST["ddList1"];
    ?>
<table>
                  <tr>
                    <td><?php echo $_POST["ddList1"]; ?></td>
                    <td><?php echo $_POST["ddList1name"]; ?></td>
                    <td><?php echo $_POST["ddList1desc"]; ?></td>
                    <td>
                        <?php
                                $_ddList1 = $_POST["ddList1"];
                                switch ($_ddList1) {
                                    case "1":
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        break;
                                    case "2":
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        break;
                                    case "3":
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";

                                        break;
                                    case "4":
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";
                                        break;
                                    case "5":
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";
                                        break;  
                                    default:
                                        echo "out of range";
                                }
                        ?>
                    </td>
                  </tr>
</table>

您的if语句将运行echo$\u POST[“ddList1”]语句；因为if遵循这种格式

if(expression) 
 statement;

由于“echo$_POST[“ddList1”]；”是以下语句，因此条件语句将仅适用于此语句

您可能需要尝试以下格式：

<?php 

 if(condition): 
 statement1;
 statement2;
 ...
 ?>
 <h1>HTML code here!<h1>
 <?php endif; ?>


HTML代码在这里！

祝你好运

您的if语句将运行echo$_POST[“ddList1”]语句；因为if遵循这种格式

if(expression) 
 statement;

    <?php
    if($_POST["ddList1"] > 0){ ?>
    <table>
        <tr>
            <td><?php echo $_POST["ddList1"]; ?></td>
            <td><?php echo $_POST["ddList1name"]; ?></td>
            <td><?php echo $_POST["ddList1desc"]; ?></td>
            <td>
                <?php
                    switch ($_POST["ddList1"]) {
                        case "1":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        break;
                        case "2":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        break;
                        case "3":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";

                        break;
                        case "4":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";
                        break;
                        case "5":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";
                        break;  
                        default:
                        echo "out of range";
                    }
                ?>
            </td>
        </tr>
    </table>
<?php } ?>

由于“echo$_POST[“ddList1”]；”是以下语句，因此条件语句将仅适用于此语句

您可能需要尝试以下格式：

<?php 

 if(condition): 
 statement1;
 statement2;
 ...
 ?>
 <h1>HTML code here!<h1>
 <?php endif; ?>


HTML代码在这里！

祝你好运


    <?php
    if($_POST["ddList1"] > 0){ ?>
    <table>
        <tr>
            <td><?php echo $_POST["ddList1"]; ?></td>
            <td><?php echo $_POST["ddList1name"]; ?></td>
            <td><?php echo $_POST["ddList1desc"]; ?></td>
            <td>
                <?php
                    switch ($_POST["ddList1"]) {
                        case "1":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        break;
                        case "2":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        break;
                        case "3":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";

                        break;
                        case "4":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";
                        break;
                        case "5":
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>&nbsp;";
                        echo "<button type=\"button\" class=\"btn btn-info ButtonOne1\" onclick=\"openwindow1();\" aria-label=\"Left Align\"><span class=\"glyphicon glyphicon glyphicon-list-alt\" aria-hidden=\"true\"></span></button>";
                        break;  
                        default:
                        echo "out of range";
                    }
                ?>
            </td>
        </tr>
    </table>
<?php } ?>

当前代码是做什么的？一些if的

{}

如何？当前代码是做什么的？一些if的

{}

如何？嗨，我尝试了你发布的简化代码，但是按钮没有显示。嗨@nhoyti哦，我忘记了一些重要的事情

str_repeat

只生成一个字符串，不输出它。用

回音更新了答案。很抱歉。嗨，我尝试了你发布的简化代码，但是按钮没有显示。嗨@nhoyti哦，我忘了一些重要的东西str_repeat
只生成一个字符串，不输出它。用回音更新了答案。很抱歉。