| 1 |
lars |
1 |
<style type="text/css">
|
|
|
2 |
<!--
|
|
|
3 |
A:link {font-family: helvetica, arial, geneva, sans-serif; font-size: x-small; text-decoration: none; color: #0000ff}
|
|
|
4 |
A:visited {font-family: helvetica, arial, geneva, sans-serif; font-size: x-small; text-decoration: none; color: #0000ff}
|
|
|
5 |
A:hover {font-family: helvetica, arial, geneva, sans-serif; font-size: x-small; text-decoration: underline; color: #FF0000}
|
|
|
6 |
th {font-family: helvetica, arial; color : blue; font-size:85%; background : lightgrey; border-right:black solid 1pt; border-bottom:black solid 1pt;}
|
|
|
7 |
//-->
|
|
|
8 |
</style><hr><a name="_C_ANTISPAM"><div style="background-color:yellow;font-family:courier new;"></a>CLASS <b>AntiSpam</b></div>
|
|
|
9 |
<i>(Defined in: jpgraph_antispam.php : 545)</i><table border=1><tr><td> <a href="AntiSpam.html" style="font-family:arial;font-weight:bold;color:darkblue;">AntiSpam</a> </td></tr><tr><td valign=top> <a href="AntiSpam.html#_ANTISPAM_ANTISPAM">AntiSpam()</a> <br>
|
|
|
10 |
<a href="AntiSpam.html#_ANTISPAM_RAND">Rand()</a> <br>
|
|
|
11 |
<a href="AntiSpam.html#_ANTISPAM_SET">Set()</a> <br>
|
|
|
12 |
<a href="AntiSpam.html#_ANTISPAM_STROKE">Stroke()</a> <br>
|
|
|
13 |
</td></tr></table> <p><div style="font-weight:bold;font-family:arial;font-size:100%;">Class usage and Overview</div>This module is used to create AntiSpam challenges that can be used to prevent automatic signup by robots on WEB-pages. <p>
|
|
|
14 |
<hr><span style="font-family:arial;font-size:120%;font-weight:bold;">Class Methods</span><hr><p>
|
|
|
15 |
<p> <p> <span style='font-size:110%;'><a name="_ANTISPAM_ANTISPAM"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000">
|
|
|
16 |
function AntiSpam($aData)</font>
|
|
|
17 |
</b></div></a></span>
|
|
|
18 |
|
|
|
19 |
<span style='font-family:arial;font-size:90%;'><i>Create a new ANtiSpam challenge image</i></span><p>
|
|
|
20 |
|
|
|
21 |
<table cellspacing=0 style='border:black solid 1pt;' width=100%>
|
|
|
22 |
<tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr>
|
|
|
23 |
<tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000">
|
|
|
24 |
$aData</font>
|
|
|
25 |
|
|
|
26 |
</td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000">
|
|
|
27 |
''</font>
|
|
|
28 |
</td><td>Data to be displayed</td></tr>
|
|
|
29 |
</table>
|
|
|
30 |
|
|
|
31 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>This method creates a new instance of the AntiSpam challenge. When the anti-spam imga eis created it is possible to directly use a supplied data string that should be displayed.
|
|
|
32 |
|
|
|
33 |
The data can also be added afterwards with a call to Set() <br>
|
|
|
34 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="AntiSpam.html#_ANTISPAM_SET">AntiSpam::Set</a> and <a href="AntiSpam.html#_ANTISPAM_RAND">AntiSpam::Rand</a>
|
|
|
35 |
<div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000">
|
|
|
36 |
$spam = new AntiSpam();</font>
|
|
|
37 |
</span><br>
|
|
|
38 |
<p>
|
|
|
39 |
<p> <p> <span style='font-size:110%;'><a name="_ANTISPAM_RAND"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000">
|
|
|
40 |
function Rand($aLen)</font>
|
|
|
41 |
</b></div></a></span>
|
|
|
42 |
|
|
|
43 |
<span style='font-family:arial;font-size:90%;'><i>Generate a random spam challenge string</i></span><p>
|
|
|
44 |
|
|
|
45 |
<table cellspacing=0 style='border:black solid 1pt;' width=100%>
|
|
|
46 |
<tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr>
|
|
|
47 |
<tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000">
|
|
|
48 |
$aLen</font>
|
|
|
49 |
|
|
|
50 |
</td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Sets the length of the generated string</td></tr>
|
|
|
51 |
</table>
|
|
|
52 |
|
|
|
53 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Instead of specifying the string manually that should be used as a challenge the string can be automatically generated. This is done witha call to the Rand() method. <br>
|
|
|
54 |
|
|
|
55 |
<div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000">
|
|
|
56 |
$antispam = new AntiSpam();
<br />$rval = $antispam->Rand();
<br />...
<br /></font>
|
|
|
57 |
</span><br>
|
|
|
58 |
<p>
|
|
|
59 |
<p> <p> <span style='font-size:110%;'><a name="_ANTISPAM_SET"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000">
|
|
|
60 |
function Set($aData)</font>
|
|
|
61 |
</b></div></a></span>
|
|
|
62 |
|
|
|
63 |
<span style='font-family:arial;font-size:90%;'><i>Set the spam challenge string</i></span><p>
|
|
|
64 |
|
|
|
65 |
|
|
|
66 |
<tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr>
|
|
|
67 |
|
|
|
68 |
$aData</font>
|
|
|
69 |
|
|
|
70 |
</td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Spam challenge</td></tr>
|
|
|
71 |
</table>
|
|
|
72 |
|
|
|
73 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>This is an alternative way of specifying the AntiSpam string. This can also be specified in the initial creation of the ANtiSpam object ro be automatically generated with a call to the Rand() method <br>
|
|
|
74 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="AntiSpam.html#_ANTISPAM_RAND">AntiSpam::Rand</a>
|
|
|
75 |
|
|
|
76 |
$antispam = new AntiSpam();
<br />...
<br />$antispam->Set($mySpamVal);</font>
|
|
|
77 |
</span><br>
|
|
|
78 |
<p>
|
|
|
79 |
<p> <p> <span style='font-size:110%;'><a name="_ANTISPAM_STROKE"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000">
|
|
|
80 |
function Stroke($aStrokeFileName)</font>
|
|
|
81 |
</b></div></a></span>
|
|
|
82 |
|
|
|
83 |
<span style='font-family:arial;font-size:90%;'><i>Send the antispam image back to the browser</i></span><p>
|
|
|
84 |
|
|
|
85 |
<table cellspacing=0 style='border:black solid 1pt;' width=100%>
|
|
|
86 |
<tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr>
|
|
|
87 |
|
|
|
88 |
$aStrokeFileName</font>
|
|
|
89 |
|
|
|
90 |
</td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000">
|
|
|
91 |
""</font>
|
|
|
92 |
</td><td>An optional file name</td></tr>
|
|
|
93 |
</table>
|
|
|
94 |
|
|
|
95 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>This sends the antispam image back to the browser or to an optional file named as the first and only argument. <br>
|
|
|
96 |
<div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="AntiSpam.html#_ANTISPAM_ANTISPAM">AntiSpam::AntiSpam</a> and <a href="AntiSpam.html#_ANTISPAM_RAND">AntiSpam::Rand</a>
|
|
|
97 |
<div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000">
|
|
|
98 |
$antispam = new AntiSpam();
<br />$rval = $antispam->Rand();
<br />...
<br />$antispam->Stroke()</font>
|
|
|
99 |
|
|
|
100 |
<p> <hr> <p>
|