回答編集履歴
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追記
test
CHANGED
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@@ -1 +1,41 @@
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`$('#form1 [name=posted]')` に該当する要素が複数になるため、val() を特定できないからです。
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---
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```php
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10
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11
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<?php foreach ($products as $product): ?>
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<div class="content-columns">
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<form class="form_sample" action="detail.php" method="post">
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<input type="hidden" name="posted" value="idNum<?php echo $product['id'] ?>">
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<input type="button" value="送信">
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</form>
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<?php endforeach ?>
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```
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```js
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$("form.form_sample").on("submit", function(){
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var v = $(this).find("[name=posted]").val();
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Console.log(v);
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return false;
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});
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40
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41
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```
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