回答編集履歴
1
チャット
test
CHANGED
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@@ -25,3 +25,82 @@
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25
25
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};
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26
26
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</script>
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27
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```
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28
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+
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29
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# chatの実装
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30
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だいぶ端折ってますが最低限動く範囲で実装しておきます
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31
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chat.html
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32
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```html
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33
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<script>
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34
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window.addEventListener('DOMContentLoaded', ()=>{
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35
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const box=document.querySelector('#box');
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36
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const message=document.querySelector('#message');
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37
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const send=document.querySelector('#send');
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38
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send.addEventListener('click',e=>{
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39
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const usp=new URLSearchParams();
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40
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if(message.value){
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41
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usp.append('m',message.value);
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fetch('sendapi.php?'+usp);
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message.value='';
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}
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});
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46
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message.addEventListener('keydown',e=>{
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47
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if(e.key=="Enter"){
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48
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send.click();
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49
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}
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});
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});
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const evtSource = new EventSource("sseapi.php",);
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53
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evtSource.onmessage = function (event) {
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54
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const json=JSON.parse(event.data);
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55
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box.appendChild(Object.assign(document.createElement('div'),{textContent:json.message}));
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56
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box.scrollTop = box.scrollHeight;
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57
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};
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58
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</script>
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59
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<style>
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60
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#box{
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61
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width:500px;
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62
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height:300px;
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63
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background-Color:lightgray;
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64
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overflow-Y:scroll;
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65
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}
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66
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</style>
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67
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<div id="box">
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68
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</div>
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69
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<input id="message"><input type="button" id="send" value="send">
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70
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```
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71
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72
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sendapi.php
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73
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```php
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74
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<?PHP
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75
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$m=filter_input(INPUT_GET,"m");
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if($m){
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$filename="chat.txt";
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78
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$file = new SplFileObject($filename, "a+");
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79
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$file->fwrite('['.microtime(true).']'.$m.PHP_EOL);
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}
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81
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```
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82
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83
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sseapi.php
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84
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```php
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85
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<?PHP
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86
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header("Cache-Control: no-store");
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87
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header("Content-Type: text/event-stream");
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88
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date_default_timezone_set("Asia/Tokyo");
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89
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$mt=microtime(true);
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90
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while (true) {
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$filename="chat.txt";
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92
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$file = new SplFileObject($filename, "r");
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93
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foreach ($file as $line) {
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if(preg_match("/^\[([\d\.]+)\](.+?)$/",$line,$match)){
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if($match[1]-$mt > 0){
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print "data:{\"message\":".json_encode($match[2])."}".PHP_EOL.PHP_EOL;
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}
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}
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ob_end_flush();
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flush();
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}
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if ( connection_aborted() ) break;
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$mt=microtime(true);
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sleep(1);
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105
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}
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106
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```
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