PHP 使用两个 GET 方法组合两个 URL 查询字符串

Question

我有两种带有 GET 方法的表单。当我提交第一个表单时，我得到了这个 URL

http://127.0.0.1/astronomy/student_enrollment.php?class_name_data=1&classNameGetDetails=

当我提交也有 GET 方法的第二个表单时。我的网址变成了这个

http://127.0.0.1/astronomy/student_enrollment.php?class_name_for_enrollment=Planet&sy_for_enrollment=2012-2013&sy_for_enrollment=45&number_of_student_enrolled=&time_schedule_student=Monday+to+Friday+8%3A00-9%3A00&generateFields=Generate

第一个查询字符串被删除并替换为第二个查询字符串

我希望我的网址看起来像这样

http://127.0.0.1/astronomy/student_enrollment.php?class_name_data=1&classNameGetDetails=&class_name_for_enrollment=Planet&sy_for_enrollment=2012-2013&sy_for_enrollment=45&number_of_student_enrolled=&time_schedule_student=Monday+to+Friday+8%3A00-9%3A00&generateFields=Generate

这两个查询字符串将与& 分隔符组合，而不是?。我该怎么做？

这是我的代码

<div class="enrollmentContent">
    <div class="classNameChoices">
    <label>Choose Class Name</label>
    <form action="" method="get">

        <select name="class_name_data">
            <?php
            $table = "classes";
            $data = array(
            'teacher_id' => $session_id
            );
            $class_name_query = show_filtered_rows($table, $data);
            while($rows = mysql_fetch_array($class_name_query)){
                $id = $rows['id'];
                $class_name = $rows['class_name'];
            ?>
            <option value="<?php echo $id; ?>"><?php echo $class_name; ?></option>
            <?php
            }
            ?>
        </select>
        <input type="submit" name="classNameGetDetails" value="" />
    </form>
    </div>
    <?php
        if(isset($_GET['classNameGetDetails'])){
            $data2 = array(
            'id' => $_GET['class_name_data'],
            'teacher_id' => $session_id
            );
            $class_name_data_query = show_filtered_rows($table, $data2);
            $rows_class = mysql_fetch_array($class_name_data_query);
    ?>
    <div class="classDetailsByClassName">
    <form action="" method="get">
        <input type="hidden" value="<?php echo $rows_class['class_name']; ?>" name="class_name_for_enrollment" />
        <input type="hidden" value="<?php echo $rows_class['school_year_from']."-".$rows_class['school_year_to']; ?>" name="sy_for_enrollment" />
        <input type="hidden" value="<?php echo $rows_class['enrollees']; ?>" name="sy_for_enrollment" />
        <label>Class Name <span><?php echo $rows_class['class_name']; ?></span></label>
        <label>SY <span><?php echo $rows_class['school_year_from']."-".$rows_class['school_year_to']; ?></span></label>
        <label>Maximum No. of Enrollees <span><?php echo $rows_class['enrollees']; ?></span></label>
        <div class="registerDetails">
            <div>
                <label>Number of students to enroll</label>
                <div><input type="number" name="number_of_student_enrolled" value=""/></div>
            </div>
            <div>
                <label>Schedule</label>
                <div>
                    <select name='time_schedule_student'>
                        <option value="Monday to Friday 8:00-9:00">Monday to Friday 8:00-9:00</option>
                        <option value="Monday to Friday 10:00-11:00">Monday to Friday 10:00-11:00</option>
                        <option value="Monday to Friday 1:00-2:00">Monday to Friday 1:00-2:00</option>
                        <option value="Monday to Friday 2:00-3:00">Monday to Friday 2:00-3:00</option>
                        <option value="Monday to Friday 9:00-10:00">Monday to Friday 9:00-10:00</option>
                        <option value="Monday to Friday 3:00-4:00">Monday to Friday 3:00-4:00</option>
                    </select>
                </div>
            </div>
            <div><input type="submit" name="generateFields" value="Generate" /></div>
        </div>
    </form>
    </div>
    <div class="enrollmentFields">
        <?php
        if(isset($_GET['generateFields'])){
            echo $_GET['class_name_for_enrollment'];
        }
        ?>

    </div>
    <?php
    }
    ?>
</div>

和我的功能

function show_filtered_rows($table, $data){
    foreach($data as $fields=>$field_data){
        $show_data[] = "`".$fields."` = '".$field_data."'";
    }
    return mysql_query("SELECT * FROM `$table` WHERE ".implode(" AND ",$show_data));
}

Answer 1

只需将第一个表单的值作为隐藏值添加到第二个表单中。

<input type="hidden" name="class_name_data" value="<?php echo $_GET['class_name_data']; ?>" />
<input type="hidden" name="classNameGetDetails" value="<?php echo $_GET['classNameGetDetails']; ?>" />

这是添加了上述 2 行的完整代码。 PHP 函数没有变化。

<div class="enrollmentContent">
    <div class="classNameChoices">
    <label>Choose Class Name</label>
    <form action="" method="get">

        <select name="class_name_data">
            <?php
            $table = "classes";
            $data = array(
            'teacher_id' => $session_id
            );
            $class_name_query = show_filtered_rows($table, $data);
            while($rows = mysql_fetch_array($class_name_query)){
                $id = $rows['id'];
                $class_name = $rows['class_name'];
            ?>
            <option value="<?php echo $id; ?>"><?php echo $class_name; ?></option>
            <?php
            }
            ?>
        </select>
        <input type="submit" name="classNameGetDetails" value="" />
    </form>
    </div>
    <?php
        if(isset($_GET['classNameGetDetails'])){
            $data2 = array(
            'id' => $_GET['class_name_data'],
            'teacher_id' => $session_id
            );
            $class_name_data_query = show_filtered_rows($table, $data2);
            $rows_class = mysql_fetch_array($class_name_data_query);
    ?>
    <div class="classDetailsByClassName">
    <form action="" method="get">
        <input type="hidden" name="class_name_data" value="<?php echo $_GET['class_name_data']; ?>" />
        <input type="hidden" name="classNameGetDetails" value="<?php echo $_GET['classNameGetDetails']; ?>" />
        <input type="hidden" value="<?php echo $rows_class['class_name']; ?>" name="class_name_for_enrollment" />
        <input type="hidden" value="<?php echo $rows_class['school_year_from']."-".$rows_class['school_year_to']; ?>" name="sy_for_enrollment" />
        <input type="hidden" value="<?php echo $rows_class['enrollees']; ?>" name="sy_for_enrollment" />
        <label>Class Name <span><?php echo $rows_class['class_name']; ?></span></label>
        <label>SY <span><?php echo $rows_class['school_year_from']."-".$rows_class['school_year_to']; ?></span></label>
        <label>Maximum No. of Enrollees <span><?php echo $rows_class['enrollees']; ?></span></label>
        <div class="registerDetails">
            <div>
                <label>Number of students to enroll</label>
                <div><input type="number" name="number_of_student_enrolled" value=""/></div>
            </div>
            <div>
                <label>Schedule</label>
                <div>
                    <select name='time_schedule_student'>
                        <option value="Monday to Friday 8:00-9:00">Monday to Friday 8:00-9:00</option>
                        <option value="Monday to Friday 10:00-11:00">Monday to Friday 10:00-11:00</option>
                        <option value="Monday to Friday 1:00-2:00">Monday to Friday 1:00-2:00</option>
                        <option value="Monday to Friday 2:00-3:00">Monday to Friday 2:00-3:00</option>
                        <option value="Monday to Friday 9:00-10:00">Monday to Friday 9:00-10:00</option>
                        <option value="Monday to Friday 3:00-4:00">Monday to Friday 3:00-4:00</option>
                    </select>
                </div>
            </div>
            <div><input type="submit" name="generateFields" value="Generate" /></div>
        </div>
    </form>
    </div>
    <div class="enrollmentFields">
        <?php
        if(isset($_GET['generateFields'])){
            echo $_GET['class_name_for_enrollment'];
        }
        ?>

    </div>
    <?php
    }
    ?>
</div>

Answer 2

您需要为隐藏输入设置值。

<input type="hidden" name="class_name_data" value="<?php echo $_GET['class_name_data']" />

并输入您的第二个表格。