59 lines
2.0 KiB
PHP
59 lines
2.0 KiB
PHP
<?php
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/**
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* @package Include/help/en
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*/
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?>
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<h1>Time Source</h1>
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<p>
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What source to use for the time. This can be (for now) either the local system (System) or database (Database).<br />
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</p>
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<p>
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This is useful when your database is not on the same system as your webserver or your Pandora FMS servers.
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In that case any time difference will miscalculate the time differences and timestamps.
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You should use NTP to sync all your pandora servers and your MySQL server.
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By using these preferences you don't have to sync your webserver but it's still recommended.
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</p>
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<p>
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Feel free to implement more sources (eg: ntp, ldap, $_SERVER...).
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</p>
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<p>
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Note: The database query will be cached the first time it's called so the time will always be the same on a page load throughout, while System time is returned whenever the function is called, which might differ slightly (especially near the ending of a second).
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</p>
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<p>
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These examples are all returning Unixtime
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<script type="text/javascript">
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var date = new Date; // Generic JS date object
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var unixtime_ms = date.getTime(); // Returns milliseconds since the epoch
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var unixtime = parseInt(unixtime_ms / 1000);
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</script>
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</p>
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<p>
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<?php
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$option = array ("prominent" => "timestamp");
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?>
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<b>Current System time:</b> <?php ui_print_timestamp (time (), false, $option); ?>
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<br />
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<b>Current Database time:</b>
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<?php
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global $config;
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switch ($config["dbtype"]) {
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case "mysql":
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$timestamp = db_process_sql("SELECT UNIX_TIMESTAMP();");
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$timestamp = $timestamp[0]['UNIX_TIMESTAMP()'];
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break;
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case "postgresql":
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$timestamp = db_get_value_sql("SELECT ceil(date_part('epoch', CURRENT_TIMESTAMP));");
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break;
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case "oracle":
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$timestamp = db_process_sql("SELECT ceil((sysdate - to_date('19700101000000','YYYYMMDDHH24MISS')) * (86400)) as dt FROM dual");
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$timestamp = $timestamp[0]['dt'];
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break;
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}
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ui_print_timestamp ($timestamp, false, $option);
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?>
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<br />
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<b>Your browser time:</b> <script type="text/javascript">document.write (date);</script>
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</p>
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