$new_stock_array的值为：
$new_stock_array = Array
(
"VRX1600/380" => 0,
"NEFOM" => 1,
"PZ1000-840" => 4,
"CU1000TNG" => 1,
"SST-91" => 0,
"BEER3" => 12,
"L09125N" => 1,
"B15GFA" => 0,
"IBM20" => 8,
"FGDG1500LS-3" => 0,
"BD550S" => 2,
"GNX1400TNG" => 1,
"SH3000-800" => 6,
"SLX3100TN" => 1,
"FGOR1000LC" => 7,
"ITR50" => 2,
"SH2000-800" => 1,
"FGOR1200LC" => 1,
"TRAYS66LGLASS" => 1,
"B215G" => 1,
"SD520Q" => 7,
"ST1200-NG" => 1,
"BD650S" => 6,
"GFC400-LPG" => 1,
"CH300-LPG" => 1,
"B318G" => 5,
"CST400-LPG" => 1,
"TC12" => 2,
"STAND6LTRAYS" => 2,
"SLX2100TN" => 0,
"STGR300" => 4,
"SH2000-700" => 5,
"SLX4100TN" => 0,
"BTS120L" => 16,
"HX-1S" => 1,
"PAX2100TNG" => 2,
"BTS160L" => 19,
"GNX1400TN" => 1,
"VRX1200/380" => 2,
"GFC400-NG" => 1,
"GN400TNV" => 2,
"CST400-NG" => 1,
"AGGF-3-NG" => 14,
"CGR400-NG" => 1,
"GNX2100TNG" => 2,
"GNX2100TN" => 2,
"BC05" => 2,
"ST1200-LPG" => 2,
"GR300-LPG" => 2,
"AGGF-3-LPG" => 0,
"CGR400-LPG" => 2,
"TRAYS6GLASS" => 3,
"BEER3SS" => 3,
"GNX650TN" => 3,
"GNX4100TNG" => 3,
"PAX3100TNG" => 2,
"SH3000-700" => 3,
"STAND6TRAYS" => 3,
"TRAYS6LGLASS" => 3,
"B1400TNV" => 2,
"PZ2000-840" => 3,
"4OVST-LPG" => 3,
"AGGF-5-LPG" => 3,
"ST600-NG" => 3,
"CH600-NG" => 3,
"WS540BTG" => 3,
"BASE300" => 3,
"SP18G" => 4,
"CH900-NG" => 4,
"WS1900BTG" => 4,
"BASE1200" => 4,
"BD700S" => 4,
"GNX2100BT" => 5,
"IBM30" => 5,
"PZ3000-840" => 6,
"CH600-LPG" => 6,
"6OVST-LPG" => 5,
"GNX3100TN" => 6,
"GNX3100BT" => 6,
"GNX3100TNG" => 5,
"GNX4100TN" => 8,
"DSA420TGO" => 9,
"AGGF-4-LPG" => 7,
"EASY50" => 9,
"AGGF-4-NG" => 9
);
以下是$all_rows:的最低摘录
$all_rows = array(
0 => Array
(
"web-scraper-order" => "web-scraper-order",
"web-scraper-start-url" => "web-scraper-start-url",
"top_category_links" => "top_category_links",
"top_category_links-href" => "top_category_links-href",
"product_links" => "product_links",
"product_links-href" => "product_links-href",
"title" => "title",
"mpn" => "mpn",
"rrp_price_inc" => "rrp_price_inc",
"stock" => "stock",
"desc" => "desc",
"primary_img_large" => "primary_img_large",
"breadcrumb_categories" => "breadcrumb_categories",
"stock_commentary" => "stock_commentary",
"next_page" => "next_page",
"next_page-href" => "next_page-href",
"rrp_price_ex" => "rrp_price_ex",
"full_img" => "full_img",
"grouped_src_3_loaded_only" => "grouped_src_3_loaded_only",
"grouped_src_3_loaded_only-src" => "grouped_src_3_loaded_only-src",
"ETA_label" => "ETA_label",
"pagination_gallery" => "pagination_gallery",
"div_href_img" => "div_href_img",
"manual" => "manual",
"collected_images" => "collected_images"
),
1 => Array
(
"web-scraper-order" => "1661506781-1480",
"web-scraper-start-url" => "https://www.agequipment.com.au/",
"top_category_links" => "",
"top_category_links-href" => "https://www.agequipment.com.au/food-processing/",
"product_links" => "12 Inch (300mm) Meat Slicer",
"product_links-href" => "https://www.agequipment.com.au/12inch-300mm-meat-slicer/",
"title" => "12 Inch (300mm) Meat Slicer",
"mpn" => "VRX1600/380",
"rrp_price_inc" => "999.00",
"stock" => "PRE ORDER",
"desc" => "",
"primary_img_large" => "",
"breadcrumb_categories" => "",
"stock_commentary" => "Pre-Order now for next shipment 9/9/2022",
"next_page" => "",
"next_page-href" => "",
"rrp_price_ex" => "$908.18",
"full_img" => "https://www.agequipment.com.au/pub/media/catalog/product/cache/10fe8d9df2d769f1f80c003a45c2fe8b/1/0/10x.jpg",
"grouped_src_3_loaded_only" => "",
"grouped_src_3_loaded_only-src" => "",
"ETA_label" => "ETA 9/9/2022",
"pagination_gallery" => "",
"div_href_img" => "",
"manual" => "",
"collected_images" => ""
),
2 => Array
(
"web-scraper-order" => "1661576256-1882",
"web-scraper-start-url" => "https://www.agequipment.com.au/",
"top_category_links" => "",
"top_category_links-href" => "https://www.agequipment.com.au/gas/",
"product_links" => "Commercial Gas Fryer - 3 Burner (LPG)",
"product_links-href" => "https://www.agequipment.com.au/commercial-gas-fryer-3-burner-lpg./",
"title" => "Commercial Gas Fryer - 3 Burner (LPG)",
"mpn" => "AGGF-3-LPG",
"rrp_price_inc" => "1,599.00",
"stock" => "Out Of Stock",
"desc" => "",
"primary_img_large" => "",
"breadcrumb_categories" => "",
"stock_commentary" => "Pre-Order now for next shipment, arriving in several weeks",
"next_page" => "",
"next_page-href" => "",
"rrp_price_ex" => "$1,453.64",
"full_img" => "https://www.agequipment.com.au/pub/media/catalog/product/cache/10fe8d9df2d769f1f80c003a45c2fe8b/a/g/aggf-3-6_1.jpg",
"grouped_src_3_loaded_only" => "",
"grouped_src_3_loaded_only-src" => "",
"ETA_label" => "",
"pagination_gallery" => "",
"div_href_img" => "",
"manual" => "",
"collected_images" => ""
)
);
以下是我试图运行的循环，从第一个数组中获取库存值$val1，并将其分配给第二个数组中的$row['mpn']：
foreach ($new_stock_array as $key1 => $val1){
foreach ($all_rows as &$row) {
$row['stock_count'] = '';
if ($key1 == $row['mpn'] ){
$row['stock_count'] = $val1;
}
}
}
结果是$row['stock_count'] = '';被添加到$all_rows数组，但是当存在这样的值时，来自$new_stock_array的库存值$val1不能被分配给$row['stock_count']。
是否相关-尚不清楚-但我也收到了通知：
注意：未定义的索引：中的mpn/322 线上的opt/lampp/htdocs/agequipment/reconsolidate_img_array.php
通过引用的foreach已知会导致问题，最好避免
嵌套循环在外循环的每次迭代中的每一行上设置$row['stock_count'] = '';。这将导致只有$new_stock_array中最后一个mpn的行具有不同的值。您只需要在$all_rows中循环一次，并使用该行的mpn查找值$new_stock_array[$row['mpn']]。在赋值之前，请检查以确保数组键存在。
foreach ($all_rows as $r_key => $row) {
$all_rows[$r_key]['stock_count'] = (array_key_exists('mpn', $row) && array_key_exists($row['mpn'], $new_stock_array)) ?
$new_stock_array[$row['mpn']] : '';
}
在行动中看到它：https://onlinephp.io/c/20ebc
我得到
注意：未定义的索引：中的mpn/322 线上的opt/lampp/htdocs/agequipment/reconsolidate_img_array.php
因为在实际数据中(与此处给出的最小数据摘录相反(，一些数据没有设置，因为数据具有空白数据单元格。