function.array-intersect.html
5.01 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Ermittelt die Schnittmenge von Arrays</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="function.array-intersect-ukey.html">array_intersect_ukey</a></div>
<div class="next" style="text-align: right; float: right;"><a href="function.array-key-exists.html">array_key_exists</a></div>
<div class="up"><a href="ref.array.html">Array Funktionen</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="function.array-intersect" class="refentry">
<div class="refnamediv">
<h1 class="refname">array_intersect</h1>
<p class="verinfo">(PHP 4 >= 4.0.1, PHP 5)</p><p class="refpurpose"><span class="refname">array_intersect</span> — <span class="dc-title">Ermittelt die Schnittmenge von Arrays</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.array-intersect-description">
<h3 class="title">Beschreibung</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>array_intersect</strong></span>
( <span class="methodparam"><span class="type">array</span> <code class="parameter">$array1</code></span>
, <span class="methodparam"><span class="type">array</span> <code class="parameter">$array2</code></span>
[, <span class="methodparam"><span class="type">array</span> <code class="parameter">$ ...</code></span>
] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>array_intersect()</strong></span> gibt ein Array mit allen Werten
von <code class="parameter">array1</code>, die auch in allen anderen
Argumenten enthalten sind, zurück. Beachten Sie, dass die Schlüssel
erhalten bleiben.
</p>
<p class="para">
<div class="example" id="example-4912">
<p><strong>Beispiel #1 <span class="function"><strong>array_intersect()</strong></span> Beispiel</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$array1 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"a" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"grün"</span><span style="color: #007700">, </span><span style="color: #DD0000">"rot"</span><span style="color: #007700">, </span><span style="color: #DD0000">"blau"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$array2 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"b" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"grün"</span><span style="color: #007700">, </span><span style="color: #DD0000">"gelb"</span><span style="color: #007700">, </span><span style="color: #DD0000">"rot"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">array_intersect</span><span style="color: #007700">(</span><span style="color: #0000BB">$array1</span><span style="color: #007700">, </span><span style="color: #0000BB">$array2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>
Danach enthält <var class="varname"><var class="varname">$result</var></var>
</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Array
(
[a] => grün
[0] => rot
)
</pre></div>
</div>
</div>
</p>
<blockquote class="note"><p><strong class="note">Hinweis</strong>:
<span class="simpara">
Zwei Elemente werden nur dann als gleich angesehen, wenn
<em>(string) $elem1 === (string) $elem2</em>. In Worten:
Wenn die String-Repräsentation die gleiche ist.
</span>
</p></blockquote>
<p class="para">
Siehe auch <span class="function"><a href="function.array-intersect-assoc.html" class="function">array_intersect_assoc()</a></span>,
<span class="function"><a href="function.array-diff.html" class="function">array_diff()</a></span> und
<span class="function"><a href="function.array-diff-assoc.html" class="function">array_diff_assoc()</a></span>.
</p>
</div>
</div><hr /><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="function.array-intersect-ukey.html">array_intersect_ukey</a></div>
<div class="next" style="text-align: right; float: right;"><a href="function.array-key-exists.html">array_key_exists</a></div>
<div class="up"><a href="ref.array.html">Array Funktionen</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>