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aktuelle.kurse/m133/4_Modulinhalte_und_Uebungen/00-Anwendungen-Beispiele-Uebungen/PHP_Referenz/funktionsreferenz/mysql_funktionen/mysql_fetch_lengths.html

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2022-02-23 22:54:51 +01:00
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>mysql_fetch_lengths</title>
<link rel="stylesheet" type="text/css" href="../../src/self.css">
<meta name="description" content="Ermittelt die L&auml;nge eines Feldes in einem Datensatz">
<meta name="keywords" content="SELFPHP, PHP, MySQL-Funktionen, mysql_fetch_lengths">
<meta name="author" content="Damir Enseleit, mail@selfphp.info">
<meta name="DC.Contributer" content="Matthias Hupp, m.hupp@selfphp3.de">
<meta name="DC.Publisher" content="Damir Enseleit, mail@selfphp.info">
<meta name="DC.Date" content="2001-08-20T12:18+01:00">
<meta name="DC.Identifier" content="http://www.selfphp3.de/funktionsreferenz/mysql_funktionen/mysql_fetch_lengths.html">
<meta name="DC.Language" content="de">
<meta name="DC.Rights" content="../../editorial/index.html">
<meta name="SELF.Firstdate" content="2001-08-20T12:18+01:00">
<meta name="SELF.Version" content="1">
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<meta name="SELF.Path" content="SELFPHP == ../../index.php // Funktionsreferenz == ../index.php // MySQL-Funktionen == index.html">
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<td bgcolor="#FFEEDD" class="nav"><a class="an" name="top"><img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"></a> <a href="../../index.html"><b>SELFPHP</b></a>/<a href="../../navigation/index.html">Navigationshilfen</a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"> <a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"> <a href="index.html"><b>MySQL-Funktionen</b></a></td>
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<h2>mysql_fetch_lengths</h2></td>
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<tr>
<td bgcolor="#EEEEEE" class="doc" valign="top" align="center"> <img src="../../src/dokx.gif" width="30" height="20" vspace="6" border="0" alt="Informationsseite">
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<td bgcolor="#FFFFFF" valign="top" nowrap colspan="2">
<p> <img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#befehl"><b>Befehl</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#version"><b>Version</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#beschreibung"><b>Beschreibung</b></a><br>
<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten">&nbsp;<a href="#beispiel"><b>Beispiel</b></a><br>
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<h2 class="Sh2"><a class="an" name="befehl">Befehl</a></h2>
<table width="100%" cellpadding=10><tr>
<td class="xmpcode" bgcolor="#E4EEFF">array <b>mysql_fetch_lengths</b>(int
Ergebnis-Kennung)</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="version">Version</a></h2>
<table width="100%" cellpadding=10 height="32">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="20">
<p>PHP 3, PHP 4 &gt;= 4.0b1</p>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
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<h2 class="Sh2"><a class="an" name="beschreibung">Beschreibung</a></h2>
<table width="100%" cellpadding=10 height="237">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
<p>Mit mysql_fetch_lengths() kann man sich anhand einer Ergebnis-Kennung<br>
(Ergebnis-Kennung) die L&auml;nge eines jeden Feldes in einem Datensatz<br>
zur&uuml;ckgeben lassen.</p>
<p>Als R&uuml;ckgabewert dieser Funktion erhalten Sie ein Array mit den
L&auml;ngen der<br>
Felder, im Fehlerfall wird false zur&uuml;ckgegeben.</p>
<p>Folgende Funktionen werden unterst&uuml;tzt:</p>
<ul>
<li><a href="mysql_fetch_row.html">mysql_fetch_row()</a></li>
<li><a href="mysql_fetch_array.html">mysql_fetch_array()</a></li>
<li><a href="mysql_fetch_object.html">mysql_fetch_object()</a></li>
</ul>
<p>Siehe auch:</p>
<ul>
<li><a href="mysql_fetch_row.html">mysql_fetch_row()</a></li>
</ul>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="beispiel">Beispiel</a></h2>
<table width="100%" cellpadding=10 height="66">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF">
<p>/*<b><br>
</b><b>Datenbank:</b> </p>
<table border="0" bgcolor=A6A6A6>
<tr bgcolor=CCCCCC>
<td align=center colspan="4"><b>Tabelle selfphp_funktionen</b></td>
</tr>
<tr>
<td align=center><b>id</b></td>
<td align=center><b>gruppe</b></td>
<td align=center><b>befehl</b></td>
<td align=center><b>version</b></td>
</tr>
<tr bgcolor=DDDDDD>
<td>1</td>
<td>Array-Funktionen</td>
<td>array_count_values</td>
<td>(PHP 4 &gt;= 4.0b4)</td>
</tr>
<tr bgcolor=CCCCCC>
<td>2</td>
<td>Variablen-Funktionen</td>
<td>is_double</td>
<td>(PHP 3 )</td>
</tr>
<tr bgcolor=DDDDDD>
<td>3</td>
<td>Verzeichnis-Funktionen</td>
<td>chdir</td>
<td>(PHP 3, PHP 4 )</td>
</tr>
<tr bgcolor=CCCCCC>
<td>4</td>
<td>Mail-Funktionen</td>
<td>mail</td>
<td>(PHP 3. PHP 4 )</td>
</tr>
</table>
<p>*/</p>
<pre>
&lt;?PHP
/* Datenbankserver - In der Regel die IP */<br> $db_server = &quot;localhost&quot;;</pre>
<pre>/* Datenbankname */
$db_name = &quot;selfphp&quot;;</pre>
<pre>/* Datenbankuser */
$db_user = &quot;root&quot;;</pre>
<pre>/* Datenbankpasswort */
$db_passwort = &quot;mega&quot;;
/* Erstellt Connect zu Datenbank her */<br> $db = @MYSQL_CONNECT($db_server,$db_user,$db_passwort);<br> mysql_select_db(&quot;selfphp&quot;,$db); <br> $result = mysql_query(&quot;SELECT * FROM selfphp_funktionen&quot;); <br> while($row = mysql_fetch_row($result)) { <br> $laenge = mysql_fetch_lengths($result); <br> echo &quot;$row[1] ($laenge[1])&quot; . &quot; - &quot;; <br> echo &quot;$row[2] ($laenge[2])&lt;BR&gt;&quot;; <br> }
?&gt;</pre>
</td>
</tr></table>
<p>&nbsp;</p>
<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a>&#160;
</td></tr></table>
<h2 class="Sh2"><a class="an" name="ausgabe">Ausgabe</a></h2>
<table width="100%" cellpadding=10 height="45">
<tr>
<td class="xmpcode" bgcolor="#E4EEFF" height="57">
<p>Array-Funktionen (16) - array_count_values (18)<br>
Variablen-Funktionen (20) - is_double (9)<br>
Verzeichnis-Funktionen (22) - chdir (5)<br>
Mail-Funktionen (15) - mail (4)</p>
<p></p>
</td>
</tr></table>
<p>&nbsp;</p>
<table cellpadding="4" cellspacing="0" border="0" width="100%">
<tr><td colspan=2 bgcolor="#EEEEEE" class="doc">
<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a>
</td></tr>
<tr>
<td bgcolor="#EEEEEE" class="doc" align="right" width="110">weiter:<a href="mysql_fetch_object.html"><img src="../../src/next.gif" width="10" height="10" border="0" hspace="10" alt="weiter"></a></td>
<td bgcolor="#FFFFFF"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
<a href="mysql_fetch_object.html"><b>mysql_fetch_object</b></a> </td>
</tr>
<tr>
<td bgcolor="#EEEEEE" class="doc" align="right" width="110">zur&uuml;ck:<a href="mysql_fetch_field.html"><img src="../../src/prev.gif" width="10" height="10" border="0" hspace="10" alt="zur&uuml;ck"></a></td>
<td bgcolor="#FFFFFF" width="100%"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
<a href="mysql_fetch_field.html"><b>mysql_fetch_field</b></a> </td>
</tr>
<tr><td colspan=2 bgcolor="#EEEEEE" class="doc">&#160;</td></tr>
</table><table cellpadding="4" cellspacing="0" border="0" width="100%">
<tr>
<td bgcolor="#FFEEDD" class="nav"><a class="an" name="bottom"><img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von"></a>
<a href="../../index.html"><b>SELFPHP</b></a>/<a href="../../navigation/index.html">Navigationshilfen</a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
<a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
<a href="index.html"><b>MySQL-Funktionen</b></a></td>
</tr>
</table>
<p><a class="an" name="bottom">&copy; 2001, 2002, 2003</A> <img src="../../src/mail.gif" width="15" height="10" border="0" alt="E-Mail">&nbsp;<a href="mailto:mail@selfphp.info">Damir Enseleit, mail@selfphp.info</a></p>
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