回答編集履歴
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追記
test
CHANGED
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@@ -134,6 +134,188 @@
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```
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```
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---
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追記
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```PHP
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147
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$food1 = "猫缶"; //$_POST['food1']; //１つ目のselectのoptionのvalue
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$food2 = "カリカリ"; //$_POST['food2']; //２つ目のselectのoptionのvalue
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150
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// 検索結果をショップ名をキーにした連想配列に詰める
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$result["shop-a"][$food1][] = array("item"=>"猫缶A","price"=>100,"url"=>"http://...");
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$result["shop-a"][$food1][] = array("item"=>"猫缶A(関東限定)","price"=>100,"url"=>"http://...");
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$result["shop-a"][$food2][] = array("item"=>"猫缶B","price"=>150,"url"=>"http://...");
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$result["shop-b"][$food1][] = array("item"=>"猫缶A","price"=>105,"url"=>"http://...");
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$result["shop-c"][$food1][] = array("item"=>"猫缶A","price"=>98,"url"=>"http://...");
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$result["shop-c"][$food2][] = array("item"=>"猫缶B","price"=>110,"url"=>"http://...");
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// food1とfood2の両方の結果があるショップだけを抽出する
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$result2 = array_filter($result, function($r){
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return count($r)>=2;
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});
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// 並び替えの処理は、複数商品があった場合どうするかによるので今回は省略
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var_dump($result2);
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```
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結果
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```
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array(2) {
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["shop-a"]=>
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array(2) {
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["猫缶"]=>
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array(2) {
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[0]=>
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array(3) {
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["item"]=>
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string(7) "猫缶A"
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["price"]=>
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int(100)
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["url"]=>
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string(10) "http://..."
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}
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[1]=>
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array(3) {
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["item"]=>
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string(21) "猫缶A(関東限定)"
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["price"]=>
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int(100)
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["url"]=>
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string(10) "http://..."
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}
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}
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["カリカリ"]=>
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array(1) {
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[0]=>
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array(3) {
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["item"]=>
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string(7) "猫缶B"
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["price"]=>
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int(150)
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["url"]=>
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string(10) "http://..."
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}
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}
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}
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["shop-c"]=>
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array(2) {
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["猫缶"]=>
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array(1) {
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[0]=>
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array(3) {
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["item"]=>
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string(7) "猫缶A"
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["price"]=>
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int(98)
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["url"]=>
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string(10) "http://..."
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}
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}
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["カリカリ"]=>
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array(1) {
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[0]=>
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array(3) {
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["item"]=>
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string(7) "猫缶B"
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["price"]=>
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int(110)
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["url"]=>
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string(10) "http://..."
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}
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}
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}
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}
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320
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321
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```
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