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pg_trace

pg_trace

Enable tracing a PostgreSQL connection

bool **pg_trace** string $filename string $mode  $connection int $trace_mode

enables tracing of the PostgreSQL

frontend/backend communication to a file. To fully understand the results, one needs to be familiar with the internals of PostgreSQL communication protocol. pg_trace

For those who are not, it can still be useful for tracing errors in queries sent to the server, you could do for example and see what queries actually were sent to the PostgreSQL server. For more information, refer to the . PostgreSQL Documentation

filename The full path and file name of the file in which to write the trace log. Same as in . fopen

mode An optional file access mode, same as for . fopen

connection``trace_mode An optional trace mode with the following constants and

  `PGSQL_TRACE_SUPPRESS_TIMESTAMPS``PGSQL_TRACE_REGRESS_MODE`

return.success

Voorbeeld: example

<?php
$pgsql_conn = pg_connect("dbname=mark host=localhost");

if ($pgsql_conn) {
   pg_trace('/tmp/trace.log', 'w', $pgsql_conn);
   pg_query("SELECT 1");
   pg_untrace($pgsql_conn);
   // Now /tmp/trace.log will contain backend communication
} else {
   print pg_last_error($pgsql_conn);
   exit;
}
?>

fopen``pg_untrace

Vorige ← pg_socket Volgende pg_transaction_status →

Documentatie