回答編集履歴
2
調整
test
CHANGED
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@@ -17,3 +17,68 @@
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17
17
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<input type="submit" >
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18
18
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</form>
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19
19
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```
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20
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+
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21
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+
# 参考
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22
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+
便宜的にgoodをセッションに保持しておきます。実際にはDBで管理してください
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23
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+
```php
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24
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<?PHP
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25
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+
session_start();
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26
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+
if(filter_input(INPUT_POST,"reset")){
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27
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+
session_destroy();
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28
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+
}
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29
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+
if(filter_input(INPUT_GET,"load")){
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30
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print json_encode($_SESSION["ids"]??[]);
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31
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exit;
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32
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}
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33
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if($id=filter_input(INPUT_GET,"good")){
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34
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$ids=$_SESSION["ids"]??[];
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35
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$ids[$id]=($ids[$id]??0)+1;
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36
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$_SESSION["ids"]=$ids;
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37
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print json_encode(["id"=>$id,"count"=>$ids[$id]]);
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38
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exit;
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39
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}
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40
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+
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41
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+
if($_POST){
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42
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+
$_SESSION["hoge"]=$_POST["hoge"]??null;
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43
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header("Location:{$_SERVER["SCRIPT_NAME"]}");
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44
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exit;
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45
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}else{
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46
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+
print_r($_SESSION);
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47
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unset($_SESSION["hoge"]);
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48
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}
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49
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?>
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50
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<script>
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51
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+
window.addEventListener('DOMContentLoaded', ()=>{
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52
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+
fetch(`?load=1`).then(res=>res.json()).then(res=>{
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53
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Object.entries(res).forEach(data=>Object.assign(document.querySelector(`[data-good="${data[0]}"] span`)??{},{textContent:data[1]}));
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54
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});
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55
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});
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56
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+
document.addEventListener('click',({target})=>{
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57
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if(target.matches('[type=button]') && target.closest('[data-good]')){
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58
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const usp= new URLSearchParams();
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59
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usp.append("good",target.closest('[data-good]').dataset.good);
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60
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fetch(`?${usp}`).then(res=>res.json()).then(data=>{
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61
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+
document.querySelector(`[data-good="${data.id}"] span`).textContent=data.count;
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62
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});
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63
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}
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64
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});
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65
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</script>
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66
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<form method="post">
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67
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<input name="hoge" value="123">
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68
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<input type="submit" >
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69
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<input type="submit" name="reset" value="reset" >
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70
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</form>
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71
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+
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72
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+
<div data-good="1">
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73
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<span></span>
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74
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<input type="button" value="いいね">
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75
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</div>
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76
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+
<div data-good="2">
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77
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<span></span>
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78
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<input type="button" value="いいね">
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79
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+
</div>
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80
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+
<div data-good="3">
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81
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+
<span></span>
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82
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+
<input type="button" value="いいね">
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83
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+
</div>
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84
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+
```
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1
typo
test
CHANGED
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@@ -1,4 +1,4 @@
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1
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-
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1
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+
自ページであってもセッションを使って遷移し完了状態にします
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2
2
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```PHP
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3
3
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<?PHP
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4
4
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session_start();
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