简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Heim > php教程 > php手册 > Hauptteil

如何运用PHP Ajax实现图片的无刷新上传

WBOY
Freigeben： 2016-06-13 11:06:14
Original
930 Leute haben es durchsucht

作为一个PHP Ajax客户端页面代码： index.html

<ol class="dp-xml">
<li class="alt"><span><strong><font color="#006699"><span class="tag"><span class="tag-name">html</span><span class="tag">></span></span></font></strong><span>   </span></span></li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">body</span><span class="tag">></span></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">h1</span><span class="tag">></span></span></font></strong><span>Ajax file upload sample</span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">h1</span><span class="tag">></span><span class="tag"><span class="tag-name">br</span><span class="tag">/></span><span class="tag"><span class="tag-name">input</span></span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">id</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"uplaod"</font></span><span> </span><span class="attribute"><font color="#ff0000">name</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"btn_send"</font></span><span> </span><span class="attribute"><font color="#ff0000">type</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"button"</font></span><span> </span><span class="attribute"><font color="#ff0000">value</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"上传测试"</font></span><span class="tag"><strong><font color="#006699">/></font></strong></span><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">div</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">id</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">result</font></span><strong><font color="#006699"><span class="tag">></span><span class="tag"></span><span class="tag-name">div</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"><span class="tag-name">PRE</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">class</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">js</font></span><span> </span><span class="attribute"><font color="#ff0000">name</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">"code"</font></span><strong><font color="#006699"><span class="tag">></span><span class="tag"><span class="tag-name">SCRIPT</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">LANGUAGE</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">JavaScript</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>   </span>
</li>
<li class=""><span>// 上传函数   </span></li>
<li class="alt"><span>function btn_send.onclick() {   </span></li>
<li class="">
<span></span><span class="attribute"><font color="#ff0000">data</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">""</font></span><span>   </span>
</li>
<li class="alt">
<span></span><span class="attribute"><font color="#ff0000">spliter</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">"-------7d8d733180846"</font></span><span>   </span>
</li>
<li class="">
<span></span><span class="attribute-value"><font color="#0000ff">data</font></span><span class="attribute"><font color="#ff0000">datadata</font></span><span> = data + spliter + "rn"   </span>
</li>
<li class="alt">
<span></span><span class="attribute-value"><font color="#0000ff">data</font></span><span class="attribute"><font color="#ff0000">datadata</font></span><span> = data + "Content-Disposition: form-data; </span><span class="attribute"><font color="#ff0000">name</font></span><span>="photofile"; </span><span class="attribute"><font color="#ff0000">filename</font></span><span>="C:\a.txt"rn"   </span>
</li>
<li class="">
<span>// </span><span class="attribute-value"><font color="#0000ff">data</font></span><span class="attribute"><font color="#ff0000">datadata</font></span><span> = data + "Content-Type: image/pjpeg" + vbCrLf   </span>
</li>
<li class="alt">
<span></span><span class="attribute-value"><font color="#0000ff">data</font></span><span class="attribute"><font color="#ff0000">datadata</font></span><span> = data + "Content-Type: text/plain" + "rn" + "rn"   </span>
</li>
<li class="">
<span></span><span class="attribute"><font color="#ff0000">text</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">"My name is Wilson Lin."</font></span><span>   </span>
</li>
<li class="alt">
<span></span><span class="attribute"><font color="#ff0000">postLength</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">text</font></span><span>.length + data.length + 2 + spliter.length + 4   </span>
</li>
<li class="">
<span></span><span class="attribute"><font color="#ff0000">package</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">data</font></span><span> + text + "rn" + spliter + "--rn"   </span>
</li>
<li class="alt"><span>alert(package)   </span></li>
<li class=""><span>// 把XML文档发送到Web服务器   </span></li>
<li class="alt">
<span>var </span><span class="attribute"><font color="#ff0000">xmlhttp</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">new</font></span><span> ActiveXObject("Microsoft.XMLHTTP");   </span>
</li>
<li class=""><span>xmlhttp.open("POST","./upload.php",false);   </span></li>
<li class="alt">
<span>xmlhttp.setRequestHeader("Content-Type", "multipart/form-data; </span><span class="attribute"><font color="#ff0000">boundary</font></span><span>=-----7d8d733180846");   </span>
</li>
<li class=""><span>xmlhttp.setRequestHeader("Content-Length", postLength);   </span></li>
<li class="alt"><span>xmlhttp.send(package);   </span></li>
<li class=""><span>// 显示服务器返回的信息   </span></li>
<li class="alt">
<span></span><span class="attribute"><font color="#ff0000">result.innerHTML</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">xmlhttp</font></span><span>.ResponseText;   </span>
</li>
<li class=""><span>}   </span></li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">SCRIPT</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">PRE</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="alt">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">body</span><span class="tag">></span></font></strong><span>   </span>
</li>
<li class="">
<span></span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">html</span><span class="tag">></span></font></strong><span> </span>
</li>
</ol>
Nach dem Login kopieren

PHP Ajax服务器端代码： upload.php 

<ol class="dp-xml">
<li class="alt"><span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">php</span></font></strong><span>   </span></span></li>
<li class=""><span>// $_FILES['photofile']:是获得上传图片的数组   </span></li>
<li class="alt"><span>// $uploadfile：存放地址   </span></li>
<li class="">
<span>$</span><span class="attribute"><font color="#ff0000">uploadfile</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">"D:/"</font></span><span>.$_FILES['photofile']['name'];   </span>
</li>
<li class="alt"><span>copy( $_FILES['photofile']['tmp_name'], $uploadfile );   </span></li>
<li class="">
<span>echo "URL: </span><strong><font color="#006699"><span class="tag"><span class="tag-name">a</span></span></font></strong><span> </span><span class="attribute"><font color="#ff0000">href</font></span><span>='http://localhost/".$_FILES['photofile']['name</span><span class="attribute-value"><font color="#0000ff">']."'</font></span><span> </span><span class="attribute"><font color="#ff0000">target</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">'_blank'</font></span><span class="tag"><strong><font color="#006699">></font></strong></span><span>".$_FILES['photofile']['name']."</span><strong><font color="#006699"><span class="tag"></span><span class="tag-name">a</span><span class="tag">></span><span class="tag"><span class="tag-name">br</span><span class="tag">/></span></span></font></strong><span>";   </span>
</li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span>  </span>
</li>
</ol>
Nach dem Login kopieren

以上所写代码就是基本的PHP Ajax实现无刷新图片上传的具体解决办法。


Verwandte Etiketten：
ajax php 上传 代码 刷新 图片 如何 实现 客户端 的 运用 页面
Quelle：php.cn
Vorheriger Artikel：PHP常用字符串的大集合 Nächster Artikel：PHP5魔术函数的具体应用讲解
Erklärung dieser Website
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn
Neueste Artikel des Autors
Aktuelle Ausgaben
Aus URL-Parametern erhaltene PHP-Arrays verhalten sich nicht wie erwartet Ich habe einen URL-Parameter, der die Kategorie-ID enthält, und ich möchte ihn als Array w...
Aus 2024-04-06 22:09:02
0
1
1428
Verschieben Sie den Inhalt nach links, indem Sie die Eigenschaft „Width' hinzufügen Ich habe dem Körper Ränder gegeben. main {linker Rand: 200px; rechter Rand: 200px; Textaus...
Aus 2024-04-06 22:01:35
0
3
816
Welches Format haben die Variablen im Rückgabewert? Ich bin ein PHP-Neuling. Ich habe einen Code gefunden: if($x<time()){return[false,'erro...
Aus 2024-04-06 21:55:20
0
1
778
Die Seite kann plötzlich weder CSS noch Bootstrap abrufen Ich entwickle also eine Seite, einen Teil davon habe ich gestern gemacht und es hat großar...
Aus 2024-04-06 21:58:04
0
1
800
Wie löst man das Rendern (mit Filter und Paginierung) für die Sortiermethode in React aus? Hier ist meine Sort.js-Stilkomponente: <SortWrapper><SortText>SortBy</SortT...
Aus 2024-04-06 21:28:37
0
1
2257
verwandte Themen
Mehr>
Beliebte Empfehlungen
Beliebte Tutorials
Mehr>
Verwandte Tutorials
Beliebte Empfehlungen
Aktuelle Kurse
Neueste Downloads
Mehr>
Web-Effekte
Quellcode der Website
Website-Materialien
Frontend-Vorlage
Über uns Haftungsausschluss Sitemap
Chinesische PHP-Website：Online-PHP-Schulung für das Gemeinwohl，Helfen Sie PHP-Lernenden, sich schnell weiterzuentwickeln！