Sophie: php-manual-ro-0:20051028-1 noarch

php-manual-ro-20051028-1.noarch.rpm

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>mysql_error</H1
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>    (PHP 3, PHP 4 , PHP 5)</P
>mysql_error&nbsp;--&nbsp;
     Returns the text of the error message from previous MySQL
     operation
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><H2
>Description</H2
>string <B
CLASS="methodname"
>mysql_error</B
> ( [resource link_identifier])<BR
></BR
><P
>&#13;     Returns the error text from the last MySQL function, or
     <VAR
CLASS="literal"
>''</VAR
> (the empty string) if no error occurred. 
     If no link is explicitly passed to the function, the last
     successful open link will be used to retrieve the error message
     from the MySQL server.
    </P
><P
>&#13;     Errors coming back from the MySQL database backend no longer
     issue warnings. Instead, use <B
CLASS="function"
>mysql_error()</B
> to
     retrieve the error text. Note that this function only returns the
     error text from the most recently executed MySQL function (not
     including <B
CLASS="function"
>mysql_error()</B
> and
     <A
HREF="function.mysql-errno.html"
><B
CLASS="function"
>mysql_errno()</B
></A
>), so if you want to use it, make
     sure you check the value before calling another MySQL function.
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><B
>Exemplu 1. <B
CLASS="function"
>mysql_error()</B
> example</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">mysql_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"mysql_user"</font><font color="#007700">, </font><font color="#DD0000">"mysql_password"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">mysql_select_db</font><font color="#007700">(</font><font color="#DD0000">"nonexistentdb"</font><font color="#007700">, </font><font color="#0000BB">$link</font><font color="#007700">);<br />echo </font><font color="#0000BB">mysql_errno</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">) . </font><font color="#DD0000">": " </font><font color="#007700">. </font><font color="#0000BB">mysql_error</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">). </font><font color="#DD0000">"\n"</font><font color="#007700">;<br /><br /></font><font color="#0000BB">mysql_select_db</font><font color="#007700">(</font><font color="#DD0000">"kossu"</font><font color="#007700">, </font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">mysql_query</font><font color="#007700">(</font><font color="#DD0000">"SELECT * FROM nonexistenttable"</font><font color="#007700">, </font><font color="#0000BB">$link</font><font color="#007700">);<br />echo </font><font color="#0000BB">mysql_errno</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">) . </font><font color="#DD0000">": " </font><font color="#007700">. </font><font color="#0000BB">mysql_error</font><font color="#007700">(</font><font color="#0000BB">$link</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
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><P
>&#13;       The above example would produce the following output:
      </P
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>1049: Unknown database 'nonexistentdb'
1146: Table 'kossu.nonexistenttable' doesn't exist</PRE
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>
    </P
><P
>&#13;     See also <A
HREF="function.mysql-errno.html"
><B
CLASS="function"
>mysql_errno()</B
></A
> and
     <A
HREF="http://dev.mysql.com/doc/mysql/en/Error-messages.html"
TARGET="_top"
>MySQL error messages</A
>.
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