<div style="font-weight: bold;margin-left:15px;">antispamex01.php</div><link rel="stylesheet" href="../phphl.css" type="text/css"><div class="hl-main"><table class="hl-table" width="100%"><tr><td class="hl-gutter" align="right" valign="top"><pre>1
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</pre></td><td class="hl-main" valign="top"><pre><span class="hl-inlinetags">&lt;?php</span><span class="hl-code"> </span><span class="hl-comment">//</span><span class="hl-comment"> content=&quot;text/plain; charset=utf-8&quot;</span><span class="hl-comment"></span><span class="hl-code">
</span><span class="hl-comment">//</span><span class="hl-comment"> Antispam example using a random string</span><span class="hl-comment"></span><span class="hl-code">
</span><span class="hl-reserved">require_once</span><span class="hl-code"> </span><span class="hl-quotes">&quot;</span><span class="hl-string">jpgraph/jpgraph_antispam.php</span><span class="hl-quotes">&quot;</span><span class="hl-code">;
 
</span><span class="hl-comment">//</span><span class="hl-comment"> Create new anti-spam challenge creator</span><span class="hl-comment"></span><span class="hl-code">
</span><span class="hl-comment">//</span><span class="hl-comment"> </span><span class="hl-inlinedoc">Note:</span><span class="hl-comment"> Neither '0' (digit) or 'O' (letter) can be used to avoid confusion</span><span class="hl-comment"></span><span class="hl-code">
</span><span class="hl-var">$spam</span><span class="hl-code"> = </span><span class="hl-reserved">new</span><span class="hl-code"> </span><span class="hl-identifier">AntiSpam</span><span class="hl-brackets">(</span><span class="hl-brackets">)</span><span class="hl-code">;
 
</span><span class="hl-comment">//</span><span class="hl-comment"> Create a random 5 char challenge and return the string generated</span><span class="hl-comment"></span><span class="hl-code">
</span><span class="hl-var">$chars</span><span class="hl-code"> = </span><span class="hl-var">$spam</span><span class="hl-code">-&gt;</span><span class="hl-identifier">Rand</span><span class="hl-brackets">(</span><span class="hl-number">5</span><span class="hl-brackets">)</span><span class="hl-code">;
 
</span><span class="hl-comment">//</span><span class="hl-comment"> Stroke random cahllenge</span><span class="hl-comment"></span><span class="hl-code">
</span><span class="hl-reserved">if</span><span class="hl-brackets">(</span><span class="hl-code"> </span><span class="hl-var">$spam</span><span class="hl-code">-&gt;</span><span class="hl-identifier">Stroke</span><span class="hl-brackets">(</span><span class="hl-brackets">)</span><span class="hl-code"> === </span><span class="hl-reserved">false</span><span class="hl-code"> </span><span class="hl-brackets">)</span><span class="hl-code"> </span><span class="hl-brackets">{</span><span class="hl-code">
    </span><span class="hl-reserved">die</span><span class="hl-brackets">(</span><span class="hl-quotes">'</span><span class="hl-string">Illegal or no data to plot</span><span class="hl-quotes">'</span><span class="hl-brackets">)</span><span class="hl-code">;
</span><span class="hl-brackets">}</span><span class="hl-code">
 
</span><span class="hl-inlinetags">?&gt;</span></pre></td></tr></table></div>