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>ldap_compare</H1
><DIV
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><A
NAME="AEN48261"
></A
><P
> (PHP 4 >= 4.0.2, PHP 5)</P
>ldap_compare -- Compare value of attribute found in entry specified with DN</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN48264"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>ldap_compare</B
> ( resource link_identifier, string dn, string attribute, string value)<BR
></BR
><P
> Returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> if <VAR
CLASS="parameter"
>value</VAR
> matches otherwise returns <TT
CLASS="constant"
><B
>FALSE</B
></TT
>. Returns -1 on error.
</P
><P
> <B
CLASS="function"
>ldap_compare()</B
> is used to compare <VAR
CLASS="parameter"
>value</VAR
>
of <VAR
CLASS="parameter"
>attribute</VAR
> to value of same attribute in LDAP directory
entry specified with <VAR
CLASS="parameter"
>dn</VAR
>.
</P
><P
> The following example demonstrates how to check whether or not given password matches
the one defined in DN specified entry.
</P
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><P
><B
>Exemplu 1. Complete example of password check</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php<br /><br />$ds</font><font color="#007700">=</font><font color="#0000BB">ldap_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">); </font><font color="#FF8000">// assuming the LDAP server is on this host<br /> <br /></font><font color="#007700">if (</font><font color="#0000BB">$ds</font><font color="#007700">) {<br /><br /> </font><font color="#FF8000">// bind <br /> </font><font color="#007700">if (</font><font color="#0000BB">ldap_bind</font><font color="#007700">(</font><font color="#0000BB">$ds</font><font color="#007700">)) {<br /><br /> </font><font color="#FF8000">// prepare data<br /> </font><font color="#0000BB">$dn </font><font color="#007700">= </font><font color="#DD0000">"cn=Matti Meikku, ou=My Unit, o=My Company, c=FI"</font><font color="#007700">;<br /> </font><font color="#0000BB">$value </font><font color="#007700">= </font><font color="#DD0000">"secretpassword"</font><font color="#007700">;<br /> </font><font color="#0000BB">$attr </font><font color="#007700">= </font><font color="#DD0000">"password"</font><font color="#007700">; <br /><br /> </font><font color="#FF8000">// compare value<br /> </font><font color="#0000BB">$r</font><font color="#007700">=</font><font color="#0000BB">ldap_compare</font><font color="#007700">(</font><font color="#0000BB">$ds</font><font color="#007700">, </font><font color="#0000BB">$dn</font><font color="#007700">, </font><font color="#0000BB">$attr</font><font color="#007700">, </font><font color="#0000BB">$value</font><font color="#007700">);<br /><br /> if (</font><font color="#0000BB">$r </font><font color="#007700">=== -</font><font color="#0000BB">1</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">"Error: " </font><font color="#007700">. </font><font color="#0000BB">ldap_error</font><font color="#007700">(</font><font color="#0000BB">$ds</font><font color="#007700">);<br /> } elseif (</font><font color="#0000BB">$r </font><font color="#007700">=== </font><font color="#0000BB">true</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">"Password correct."</font><font color="#007700">;<br /> } elseif (</font><font color="#0000BB">$r </font><font color="#007700">=== </font><font color="#0000BB">false</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">"Wrong guess! Password incorrect."</font><font color="#007700">;<br /> }<br /><br /> } else {<br /> echo </font><font color="#DD0000">"Unable to bind to LDAP server."</font><font color="#007700">;<br /> } <br /><br /> </font><font color="#0000BB">ldap_close</font><font color="#007700">(</font><font color="#0000BB">$ds</font><font color="#007700">);<br /><br />} else {<br /> echo </font><font color="#DD0000">"Unable to connect to LDAP server."</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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><B
>Avertisment</B
></TD
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><TR
><TD
ALIGN="LEFT"
><P
> <B
CLASS="function"
>ldap_compare()</B
> can NOT be used to compare BINARY values!
</P
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Notã: </B
>
This function was added in 4.0.2.
</P
></BLOCKQUOTE
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