note 40816 added to function.pg-result-error

From: Date: Mon, 15 Mar 2004 21:12:16 +0000
Subject: note 40816 added to function.pg-result-error
Groups: php.notes 
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Because pg_query() returns FALSE if the query fails, you must must use pg_send_query() and pg_get_result() to get the result handle. PostgreSQL 7.4 introduced a new function called PQresultErrorField() that can be used to get SQLSTATE code from a query, which is far more useful than the error string returned from pg_result_error(). http://www.postgresql.org/docs/7.4/static/libpq-exec.html http://www.postgresql.org/docs/7.4/static/errcodes-appendix.html Here's a patch that adds the pg_result_error_field() function to PHP: http://collapsed.net/patches/php-4.3.5RC3-pg_result_error_field.diff (To apply the patch cd into your php-4.3.5RC directory and type: patch -p1 </path/to/php-4.3.5RC3-pg_result_error_field.diff) Example code: <?php if(!($db = pg_connect("user=foo password=bar dbname=foobar"))) die("pg_connect"); if(!pg_send_query($db, "SELECT foo FROM bar")) die("pg_send_query"); if(!($result = pg_get_result($db))) die("pg_get_result"); echo(pg_result_error($result) . "<br />\n"); /* only available if you have patched php */ if(function_exists("pg_result_error_field")) { $fieldcode = array( "PGSQL_DIAG_SEVERITY", "PGSQL_DIAG_SQLSTATE", "PGSQL_DIAG_MESSAGE_PRIMARY", "PGSQL_DIAG_MESSAGE_DETAIL", "PGSQL_DIAG_MESSAGE_HINT", "PGSQL_DIAG_STATEMENT_POSITION", "PGSQL_DIAG_CONTEXT", "PGSQL_DIAG_SOURCE_FILE", "PGSQL_DIAG_SOURCE_LINE", "PGSQL_DIAG_SOURCE_FUNCTION"); foreach($fieldcode as $fcode) { printf("%s: %s<br />\n", $fcode, pg_result_error_field($result, constant($fcode))); } pg_free_result($result); } ?> <?php pg_result_error_field($result, PGSQL_DIAG_SQLSTATE); ?> Returns the SQLSTATE code. ---- Manual Page -- http://www.php.net/manual/en/function.pg-result-error.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+40816 Delete -- http://master.php.net/manage/user-notes.php?action=delete+40816&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+40816&report=yes Search -- http://master.php.net/manage/user-notes.php

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