De seneste forum tråde i [bruger] på Udvikleren.dk http://www.udvikleren.dk/ Wed, 29 Apr 2026 10:28:20 GMT http://backend.userland.com/rss Udvikleren.dk RSS Feeder 60 Okay jeg har lavet en form der går det muligt at indsætte en artikel i min database, i denne form skal man oplyse sit brugernavn for at kunne skrive artikel, mit problem er bare om hvordan jeg tjekker om brugeren eksistere?<br /><br />Jeg prøvede det her men med uden held.. <br /><br /><div class="codeboxheader" id="code_235838467" onclick="ToggleCodeBox(this.id);"><img id="code_235838467_arrow" src="/images/icons/codeboxarrow_down.gif" alt="Fold kodeboks ind/ud" title="Fold kodeboks ind/ud" />PHP kode&nbsp;</div><pre id="code_235838467code" style="border-top: 0px; display: none;"><ol><li style="padding: 0; margin: 0;"> <span style="color: #800080;">$tjek</span><span style="color: #000000;"> </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #008080;">mysql_query</span><span style="color: #000000;"> (</span><span style="color: #000000;">&quot;</span><span style="color: #000000;">select * from `login` where username = '</span><span style="color: #800080;">$navn</span><span style="color: #000000;">'</span><span style="color: #000000;">&quot;</span><span style="color: #000000;">); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">if</span><span style="color: #000000;"> (</span><span style="color: #800080;">$tjek</span><span style="color: #000000;">) </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> { </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">echo</span><span style="color: #000000;"> </span><span style="color: #000000;">'</span><span style="color: #000000;">&lt;font color=&quot;red&quot;&gt;* Brugernavnet skal v&#230;re registeret!&lt;/font&gt;</span><span style="color: #000000;">'</span><span style="color: #000000;">; </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">include</span><span style="color: #000000;">(</span><span style="color: #000000;">'</span><span style="color: #000000;">artikel.php</span><span style="color: #000000;">'</span><span style="color: #000000;">); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> }</span><span style="color: #0000FF;">else</span><span style="color: #000000;">{ </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #008080;">mysql_query</span><span style="color: #000000;">(</span><span style="color: #000000;">&quot;</span><span style="color: #000000;">INSERT INTO artikler (`titel`, `tekst`, `dato`, `navn`, `kategori`, `kode`) VALUES('</span><span style="color: #800080;">$titel</span><span style="color: #000000;">', '</span><span style="color: #800080;">$tekst</span><span style="color: #000000;">', '</span><span style="color: #800080;">$dato</span><span style="color: #000000;">', '</span><span style="color: #800080;">$navn</span><span style="color: #000000;">', '</span><span style="color: #800080;">$kategori</span><span style="color: #000000;">', '</span><span style="color: #800080;">$kode</span><span style="color: #000000;">')</span><span style="color: #000000;">&quot;</span><span style="color: #000000;">) or </span><span style="color: #0000FF;">die</span><span style="color: #000000;"> (</span><span style="color: #008080;">mysql_error</span><span style="color: #000000;">()); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">echo</span><span style="color: #000000;"> </span><span style="color: #000000;">&quot;</span><span style="color: #000000;">Artikel blev succesfuldt oprettet!</span><span style="color: #000000;">&quot;</span><span style="color: #000000;">; </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">print</span><span style="color: #000000;"> </span><span style="color: #000000;">'</span><span style="color: #000000;">&lt;a href=&quot;index.php&quot;&gt; G&#229; tilbage&lt;/a&gt;, eller &lt;a href=&quot;index.php?side=skrivartikel&quot;&gt;opret en ny artikel&lt;/a&gt;.</span><span style="color: #000000;">'</span><span style="color: #000000;">; </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #008000;">//</span><span style="color: #008000;"> t&#230;nk ikke p&#229; der her..</span><span style="color: #008000;"> </span></li><li style="padding: 0; margin: 0;"> <span style="color: #008000;"></span><span style="color: #000000;"> </span><span style="color: #0000FF;">unset</span><span style="color: #000000;">(</span><span style="color: #800080;">$_POST</span><span style="color: #000000;">[</span><span style="color: #000000;">'</span><span style="color: #000000;">titel</span><span style="color: #000000;">'</span><span style="color: #000000;">]); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">unset</span><span style="color: #000000;">(</span><span style="color: #800080;">$_POST</span><span style="color: #000000;">[</span><span style="color: #000000;">'</span><span style="color: #000000;">tekst</span><span style="color: #000000;">'</span><span style="color: #000000;">]); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">unset</span><span style="color: #000000;">(</span><span style="color: #800080;">$_POST</span><span style="color: #000000;">[</span><span style="color: #000000;">'</span><span style="color: #000000;">navn</span><span style="color: #000000;">'</span><span style="color: #000000;">]); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> </span><span style="color: #0000FF;">unset</span><span style="color: #000000;">(</span><span style="color: #800080;">$_POST</span><span style="color: #000000;">[</span><span style="color: #000000;">'</span><span style="color: #000000;">valg</span><span style="color: #000000;">'</span><span style="color: #000000;">]); </span></li><li style="padding: 0; margin: 0;"> <span style="color: #000000;"> }</span></li></ol></pre><br /><br />På forhånd tak <img src="/images/smileys/smiley.gif" alt=":)" title=":)" />! http://www.udvikleren.dk/forum/34303/php-hjaelp!/ Thu, 05 May 2011 17:01:40 GMT