英文:
How can I pass and display values from dynamically created input fields via POST method?
问题
I have a form in my HTML page which contains input fields that are dynamically generated. I am able to successfully store the data entered into these fields in a MySQL database. However, my goal is to pass and display the data after the user clicks on the submit button. When I attempt to do this, I get the following error::
Notice: Array to string conversion in C:\xampp\htdocs\abc\Invoice.php on line 112 Array
Here is the snippet of my HTML form:
<form method="POST" action="invoice.php"><td><input type="text" class="price form-control text-end" name="price1[]"></td><td><input type="text" class="discount form-control text-end" name="discount[]"></td><td><input type="text" class="qty form-control text-end" name="qty[]"></td><input type="submit" name="submit"></form>
PHP to get post values from the form
if(isset($_POST['submit'])) { // getting all values from the HTML form$price1 = $_POST['price1'];$discunt = $_POST['discunt'];}<table><tr><td>'.$_POST['price1'].'</td><td>'.$_POST['discunt'].'</td></tr></table>
英文:
I have a form in my HTML page which contains input fields that are dynamically generated. I am able to successfully store the data entered into these fields in a MySQL database. However, my goal is to pass and display the data after the user clicks on the submit button. When I attempt to do this, I get the following error::
Notice: Array to string conversion in C:\xampp\htdocs\abc\Invoice.php on line 112 Array
Here is the snippet of my HTML form:
<form method="POST" action="invoice.php"><td><input type="text" class="price form-control text-end" name="price1[]"></td><td><input type="text" class="discount form-control text-end" name="discount[]"></td><td><input type="text" class="qty form-control text-end" name="qty[]"></td><input type="submit" name="submit"></form>
PHP to get post values from the form
if(isset($_POST['submit'])) { // getting all values from the HTML form$price1 = $_POST['price1'];$discunt = $_POST['discunt'];}<table><tr><td>'.$_POST['price1'].'</td><td>'.$_POST['discunt'].'</td></tr></table>`
答案1
得分: 1
为了打印数组，您可以像这样使用foreach循环：
// 循环遍历price1数组并打印每个值foreach ($_POST['price1'] as $price) {echo $price;}// 循环遍历discount数组并打印每个值foreach ($_POST['discount'] as $discount) {echo $discount;}
或者使用像print_r()这样的函数：
// 以可读格式打印price1数组print_r($_POST['price1']);// 以可读格式打印discount数组print_r($_POST['discount']);
或者使用像implode()这样的函数：
// 将price1数组转换为逗号分隔的字符串$price1_string = implode(',', $_POST['price1']);// 将discount数组转换为逗号分隔的字符串$discount_string = implode(',', $_POST['discount']);// 打印字符串echo $price1_string;echo $discount_string;
英文:
To print arrays, you can use a foreach loop like this:
// Loop through the price1 array and print each valueforeach ($_POST['price1'] as $price) {echo $price;}// Loop through the discount array and print each valueforeach ($_POST['discount'] as $discount) {echo $discount;}
Or use a function like print_r() like this:
// Print the price1 array in a readable formatprint_r($_POST['price1']);// Print the discount array in a readable formatprint_r($_POST['discount']);
Or use a function like implode() like this:
// Convert the price1 array to a string separated by commas$price1_string = implode(',', $_POST['price1']);// Convert the discount array to a string separated by commas$discount_string = implode(',', $_POST['discount']);// Print the stringsecho $price1_string;echo $discount_string;
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