php - 如何在php中获取特定的数组值

Question

我想在 php 中输出数组中的特定值

下面是我的代码，数组是$content

<?php
$content = $_POST;

for($i=1; $i < $content['itemCount'] + 1; $i++) {
  $name = 'item_name_'.$i;
  $quantity = 'item_quantity_'.$i;
  $price = 'item_price_'.$i;
  $image='item_image_'.$i;
  $option='item_options_'.$i;
  $total = $content[$quantity]*$content[$price];
}
?>

<?php
print_r( $content );

?>

输出如下:

Array ( [currency] => INR 
[shipping] => 0 
[tax] => 0 
[taxRate] => 0 
[itemCount] => 3 
[item_name_1] => Our Nest 
[item_quantity_1] => 1 
[item_price_1] => 1900 
[item_options_1] => image: CF01108.jpg, productcode: 602793420 
[item_name_2] => Our Nest 
[item_quantity_2] => 1 
[item_price_2] => 2100 
[item_options_2] => image: CF01110.jpg, productcode: 123870196 
[item_name_3] => Our Nest 
[item_quantity_3] => 1 
[item_price_3] => 1800 
[item_options_3] => image: CF01106.jpg, productcode: 416267436 )

如何在 php 变量中获取 productcode 值并回显它？

例子:

602793420, 123870196, 416267436

Answer 1

你可以使用explode()函数得到productcode，像这样，

$product_code = explode("productcode: ", $option)[1];

引用如下:

• explode()

所以你的代码应该是这样的:

<?php
    $content = $_POST;

    for($i=1; $i < $content['itemCount'] + 1; $i++) {
      $name = 'item_name_'.$i;
      $quantity = 'item_quantity_'.$i;
      $price = 'item_price_'.$i;
      $image='item_image_'.$i;
      $option='item_options_'.$i;
      $product_code = explode("productcode: ", $option)[1];
      $total = $content[$quantity]*$content[$price];
    }
?>