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10 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html>
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<head>
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<title>call_user_func_array</title>
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<link rel="stylesheet" type="text/css" href="../../src/self.css">
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<meta name="description" content="Gibt Werte an eine benutzerdefinierte Funktion">
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<meta name="keywords" content="SELFPHP, PHP, Functions-Funktionen, call_user_func_array">
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<meta name="author" content="Damir Enseleit, mail@selfphp.info">
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<meta name="DC.Contributer" content="Matthias Hupp, m.hupp@selfphp3.de">
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<meta name="DC.Publisher" content="Damir Enseleit, mail@selfphp.info">
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<meta name="DC.Date" content="2001-08-18T12:18+01:00">
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<meta name="DC.Identifier" content="http://www.selfphp3.de/funktionsreferenz/functions_funktionen/call_user_func_array.html">
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<meta name="DC.Rights" content="../../editorial/index.html">
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<meta name="SELF.Firstdate" content="2001-08-18T12:18+01:00">
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<meta name="SELF.Path" content="SELFPHP == ../../index.php // Funktionsreferenz == ../index.php // Functions-Funktionen == index.html">
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<body bgcolor="#FFFFFF" text="#000000" link="#AA5522" vlink="#772200" alink="#000000">
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<table cellpadding="4" cellspacing="0" border="0" width="100%">
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<tr>
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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>Functions-Funktionen</b></a></td>
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</table>
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<table cellpadding="4" cellspacing="0" border="0" width="100%">
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<tr>
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<td bgcolor="#EEEEEE" class="doc" width="110"><img src="../../src/logo.gif" width="106" height="109" border="0" alt="SEL.html"></td>
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<td bgcolor="#EEEEEE" class="doc" valign="bottom" width="100%">
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<h2>call_user_func_array</h2></td>
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</tr>
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<tr>
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<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>
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<td bgcolor="#FFFFFF" valign="top" nowrap colspan="2">
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<p> <img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#befehl"><b>Befehl</b></a><br>
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<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#version"><b>Version</b></a><br>
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<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#beschreibung"><b>Beschreibung</b></a><br>
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<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#beispiel"><b>Beispiel</b></a><br>
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<img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"> <a href="#ausgabe"><b>Ausgabe</b></a><br>
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</p>
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</td>
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</tr>
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<tr>
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<td colspan=3 bgcolor="#EEEEEE" class="doc"><a href="#bottom"><img src="../../src/down.gif" width="14" height="10" border="0" alt="nach unten"></a> </td>
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</table>
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<h2 class="Sh2"><a class="an" name="befehl">Befehl</a></h2>
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<table width="100%" cellpadding=10><tr>
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<td class="xmpcode" bgcolor="#E4EEFF">mixed <b>call_user_func_array</b>(string
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function_name [, array paramarr])</td>
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</tr></table>
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<p> </p>
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<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
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<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> 
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</td></tr></table>
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<h2 class="Sh2"><a class="an" name="version">Version</a></h2>
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<table width="100%" cellpadding=10 height="32">
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<tr>
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<td class="xmpcode" bgcolor="#E4EEFF" height="20">
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<p>PHP 4 >= 4.0.4</p>
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</td>
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</tr></table>
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<p> </p>
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<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
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<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> 
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</td></tr></table>
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<h2 class="Sh2"><a class="an" name="beschreibung">Beschreibung</a></h2>
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<table width="100%" cellpadding=10 height="127">
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<tr>
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<td class="xmpcode" bgcolor="#E4EEFF" height="57">
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<p>Mit call_user_func_array() kann man eine benutzerdefinierte Funktion<br>
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(function_name) aufrufen. Dieser benutzerdefinierten Funktion wird das
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Array<br>
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paramarr als Argument übergeben.<br>
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Als Ergebnis liefert call_user_func_array() den Rückgabewert der
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aufgerufenen<br>
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Funktion.<br>
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Im unteren Beispiel wurde ein Formular simuliert. Dabei wurden 10 Inputfelder<br>
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mit dem Namen "text[]" als Array deklariert und an das Skript
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geschickt. Das<br>
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Skript überprüft nun alle Variablen auf Vollständigkeit
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und falls ein Element leer<br>
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ist, so wird es markiert. Dem User könnte man so genau zeigen, an
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welcher Stelle<br>
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er noch was ausfüllen muss. Anstatt der for-Schleife mit der Input-Ausgabe,<br>
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könnte man das Formular neu laden und die Felder zuweisen.</p>
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<p>Siehe auch:</p>
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<ul>
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<li><a href="call_user_func.html">call_user_func()</a></li>
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<li><a href="../klassen_und_objekt_funktionen/call_user_method.html">call_user_method()</a></li>
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<li><a href="../klassen_und_objekt_funktionen/call_user_method_array.html">call_user_method_array()</a></li>
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</ul>
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</td>
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</tr></table>
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<p> </p>
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<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
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<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> 
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</td></tr></table>
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<h2 class="Sh2"><a class="an" name="beispiel">Beispiel</a></h2>
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<table width="100%" cellpadding=10 height="66">
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<tr>
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<td class="xmpcode" bgcolor="#E4EEFF">
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<pre><?PHP<br>//<br>// Array wird über ein Formular eingelesen<br>// 10 Felder a <input type="text" name="text[]"><br>//<br>$text[] = "1";<br>$text[] = "2";<br>$text[] = "";<br>$text[] = "4";<br>$text[] = "";<br>$text[] = "6";<br>$text[] = "7";<br>$text[] = "";<br>$text[] = "9";<br>$text[] = "10";<br>//<br>// Ab hier beginnt das Script<br>//<br>function debug_error($var, $val){<br> global $error , $fehler;<br> if(empty($val)){<br> $error[$var] = "#FF0000"; //rote Farbe<br> $fehler++;<br> }<br> else <br> $error[$var] = "#000000"; //schwarze Farbe
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}
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for($x=0;$x<count($text);$x++){
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call_user_func_array ('debug_error', array($x, $text[$x]));
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}
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if(isset($fehler)){
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for($x=0;$x<10;$x++){
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echo"<font color=\"$error[$x]\">Inputfeld " . $z = $x+1 . "</font><br>";
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}
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}
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else{
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//Alles in Ordnung - Daten abspeichern!
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}
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?></pre>
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</td>
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</tr></table>
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<p> </p>
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<table bgcolor="#EEEEEE" class="doc" width="100%"><tr><td>
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<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> 
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</td></tr></table>
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<h2 class="Sh2"><a class="an" name="ausgabe">Ausgabe</a></h2>
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<table width="100%" cellpadding=10 height="45">
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<tr>
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<td class="xmpcode" bgcolor="#E4EEFF" height="57">
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<p>Inputfeld 1<br>
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Inputfeld 2<br>
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<font color="#FF0000">Inputfeld 3</font><br>
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Inputfeld 4<br>
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<font color="#FF0000">Inputfeld 5</font><br>
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Inputfeld 6<br>
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Inputfeld 7<br>
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<font color="#FF0000">Inputfeld 8</font><br>
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Inputfeld 9<br>
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Inputfeld 10</p>
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</td>
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</tr></table>
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<p> </p>
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<table cellpadding="4" cellspacing="0" border="0" width="100%">
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<tr><td colspan=2 bgcolor="#EEEEEE" class="doc">
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<a href="#top"><img src="../../src/up.gif" width="14" height="10" border="0" alt="nach oben"></a>
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</td></tr>
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<tr>
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<td bgcolor="#EEEEEE" class="doc" align="right" width="110">weiter:<a href="create_function.html"><img src="../../src/next.gif" width="10" height="10" border="0" hspace="10" alt="weiter"></a></td>
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<td bgcolor="#FFFFFF"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
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<a href="create_function.html"><b>create_function</b></a> </td>
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</tr>
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<tr>
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<td bgcolor="#EEEEEE" class="doc" align="right" width="110">zurück:<a href="call_user_func.html"><img src="../../src/prev.gif" width="10" height="10" border="0" hspace="10" alt="zurück"></a></td>
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<td bgcolor="#FFFFFF" width="100%"><img src="../../src/dok.gif" width="15" height="10" border="0" alt="Seite">
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<a href="call_user_func.html"><b>call_user_func</b></a> </td>
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</tr>
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<tr><td colspan=2 bgcolor="#EEEEEE" class="doc"> </td></tr>
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</table><table cellpadding="4" cellspacing="0" border="0" width="100%">
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<tr>
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<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>
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<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">
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<a href="../index.html"><b>Funktionsreferenz</b></a> <img src="../../src/refkap.gif" width="16" height="13" border="0" alt="Teil von">
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<a href="index.html"><b>Functions-Funktionen</b></a></td>
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</tr>
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</table>
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<p><a class="an" name="bottom">© 2001, 2002, 2003</A> <img src="../../src/mail.gif" width="15" height="10" border="0" alt="E-Mail"> <a href="mailto:mail@selfphp.info">Damir Enseleit, mail@selfphp.info</a></p>
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</body>
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</html>
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