回答編集履歴
1
さｍｐぇ
test
CHANGED
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@@ -3,3 +3,89 @@
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3
3
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もちろんサブミットされたあともdb側でユニーク制限をつけておき
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4
4
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5
5
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入力失敗の際にはエラーを返す仕組みが必要になります
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6
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+
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7
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8
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9
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# sample
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10
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ちょっと雑ですが、以下チェック用
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12
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13
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14
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15
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- main.html
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16
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17
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```HTML
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
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<script>
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$(function(){
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$('#artname').on('keyup',function(e){
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var val = $(this).val();
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$.ajax({
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type: "POST",
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dataType:"text",
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url: "pre.php",
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36
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data: {artname:val},
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}).done(function(data){
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if(data==="1"){
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$("#message").text('データ有り').css({"color":"red"});
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} else {
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$("#message").text('データ無し').css({"color":"blue"});
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48
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}
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});
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});
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54
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55
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});
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56
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57
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</script>
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58
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<input type="text" name="artname" id="artname"><span id="message"></span>
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60
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61
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```
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62
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63
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64
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65
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- pre.php
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66
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67
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```PHP
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68
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69
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<?php
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70
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$account = filter_input(INPUT_POST,'artname');
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$array = array('aaa','bbb');
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75
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$hit = in_array($account,$array)!==false;
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76
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if($hit){
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78
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print 1;
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80
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81
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}else{
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82
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print 0;
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84
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85
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};
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86
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87
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exit;
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88
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89
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?>
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90
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91
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```
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