php_ref_filter.asp

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  </tr>
  <tr>
    <td valign="top"><a href="func_filter_list.asp">filter_list()</a></td>
    <td valign="top">Returns an array of all supported filters</td>
    <td valign="top">5</td>
  </tr>
  <tr>
    <td valign="top"><a href="func_filter_var_array.asp">filter_var_array()</a></td>
    <td valign="top">Get multiple variables and filter them</td>
    <td valign="top">5</td>
  </tr>
  <tr>
    <td valign="top"><a href="func_filter_var.asp">filter_var()</a></td>
    <td valign="top">Get a variable and filter it</td>
    <td valign="top">5</td>
  </tr>
  </table>
<br />
<hr>

<h2>PHP Filters</h2>
<table class="ex" cellspacing="0" border="1" width="100%">
  <tr>
    <th width="50%" align="left" valign="top">ID Name</th>
	<th width="50%" align="left" valign="top">Description</th>
  </tr>
			<tr>
				<td valign="top"><a href="filter_callback.asp">FILTER_CALLBACK</a></td>
				<td valign="top">Call a user-defined function to filter data</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_sanitize_string.asp">FILTER_SANITIZE_STRING</a></td>
				<td valign="top">Strip tags, optionally strip or encode special characters</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_stripped.asp">FILTER_SANITIZE_STRIPPED</a></td>
				<td valign="top">Alias of &quot;string&quot; filter</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_encoded.asp">FILTER_SANITIZE_ENCODED</a></td>
				<td valign="top">URL-encode string, optionally strip or encode special 
				characters</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_special_chars.asp">FILTER_SANITIZE_SPECIAL_CHARS</a></td>
				<td valign="top">HTML-escape '&quot;&lt;&gt;&amp; and characters with ASCII value less than 
				32</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_email.asp">FILTER_SANITIZE_EMAIL</a></td>
				<td valign="top">Remove all characters, except letters, digits and !#$%&amp;'*+-/=?^_`{|}~@.[]</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_url.asp">FILTER_SANITIZE_URL</a></td>
				<td valign="top">Remove all characters, except letters, digits and $-_.+!*'(),{}|\\^~[]`&lt;&gt;#%&quot;;/?:@&amp;=</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_number_int.asp">FILTER_SANITIZE_NUMBER_INT</a></td>
				<td valign="top">Remove all characters, except digits and +-</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_number_float.asp">FILTER_SANITIZE_NUMBER_FLOAT</a></td>
				<td valign="top">Remove all characters, except digits, +- and optionally .,eE</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_sanitize_magic_quotes.asp">FILTER_SANITIZE_MAGIC_QUOTES</a></td>
				<td valign="top">Apply addslashes()</td>
			</tr>
	<tr>
				<td valign="top"><a href="filter_unsafe_raw.asp">FILTER_UNSAFE_RAW</a></td>
				<td valign="top">Do nothing, optionally strip or encode special characters</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_int.asp">FILTER_VALIDATE_INT</a></td>
				<td valign="top">Validate value as integer, optionally from the specified 
				range</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_boolean.asp">FILTER_VALIDATE_BOOLEAN</a></td>
				<td valign="top">Return TRUE for &quot;1&quot;, &quot;true&quot;, &quot;on&quot; and &quot;yes&quot;, FALSE for &quot;0&quot;, 
				&quot;false&quot;, &quot;off&quot;, &quot;no&quot;, and &quot;&quot;, NULL otherwise</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_float.asp">FILTER_VALIDATE_FLOAT</a></td>
				<td valign="top">Validate value as float</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_regexp.asp">FILTER_VALIDATE_REGEXP</a></td>
				<td valign="top">Validate value against regexp, a Perl-compatible regular 
				expression</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_url.asp">FILTER_VALIDATE_URL</a></td>
				<td valign="top">Validate value as URL, optionally with required components</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_email.asp">FILTER_VALIDATE_EMAIL</a></td>
				<td valign="top">Validate value as e-mail</td>
			</tr>
			<tr>
				<td valign="top"><a href="filter_validate_ip.asp">FILTER_VALIDATE_IP</a></td>
				<td valign="top">Validate value as IP address, optionally only IPv4 or IPv6 
				or not from private or reserved ranges</td>
			</tr>
			</table>

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