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PHP/Reflection/interface exists - История изменений
2026-04-05T23:34:48Z
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в 10:37, 26 мая 2010
2010-05-26T10:37:34Z
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Admin: 1 версия
2010-05-26T07:07:02Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==_exists function==<br />
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<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
bool function_exists (string function_name)<br />
bool method_exists (object object, string method_name)<br />
bool class_exists (string class_name [, bool autoload])<br />
bool interface_exists (string interface_name [, bool autoload])<br />
<?php<br />
if (function_exists($isemail)){<br />
if (isemail($email)){<br />
} else {<br />
echo "Not a valid e-mail address.";<br />
}<br />
} else {<br />
echo "Function does not exist.<br />";<br />
}<br />
<br />
if (class_exists (myparent)){<br />
class anyclass extends myparent {<br />
public $somemember;<br />
public function dosomething (){<br />
if (method_exists (parent,"parentmethod")){<br />
} else {<br />
}<br />
}<br />
}<br />
} else {<br />
echo "Class does not exist.<br />";<br />
}<br />
if (isset ($_POST["searchterm"])){<br />
} else {<br />
echo "You must submit a search term. Please press the Back button.";<br />
}<br />
?><br />
<br />
</source></div>
Admin