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I use the theme as an affiliate deals aggregator. I am using WP all import plugin to import deals from xml files. On import, I face a major problem concerning the expire date as in every xml, it is in the format: “2015-04-23 00:00:00”, while your theme requires UNIX timestamp and can not convert. I used strtotime() in wp all import to convert date to timestamp in real time. But im getting this error : Warning: date() expects parameter 2 to be long, string given in /home/xxxx/xxxxx.com/wp-includes/functions.php on line 112/114/116 and 117 The functions.php file : function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) { global $wp_locale; $i = $unixtimestamp; if ( false === $i ) { if ( ! $gmt ) $i = current_time( 'timestamp' ); else $i = time(); // we should not let date() interfere with our // specially computed timestamp $gmt = true; } /* * Store original value for language with untypical grammars. * See https://core.trac.wordpress.org/ticket/9396 */ $req_format = $dateformatstring; $datefunc = $gmt? 'gmdate' : 'date'; if ( ( !empty( $wp_locale->month ) ) && ( !empty( $wp_locale->weekday ) ) ) { $datemonth = $wp_locale->get_month( $datefunc( 'm', $i ) );-----------LINE 112 $datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth ); $dateweekday = $wp_locale->get_weekday( $datefunc( 'w', $i ) );------LINE 114 $dateweekday_abbrev = $wp_locale->get_weekday_abbrev( $dateweekday ); $datemeridiem = $wp_locale->get_meridiem( $datefunc( 'a', $i ) );----LINE 116 $datemeridiem_capital = $wp_locale->get_meridiem( $datefunc( 'A', $i) );------LINE 117 $dateformatstring = ' '.$dateformatstring; $dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring ); $dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring ); $dateformatstring = preg_replace( "/([^\\\])l/", "\\1" . backslashit( $dateweekday ), $dateformatstring ); $dateformatstring = preg_replace( "/([^\\\])M/", "\\1" . backslashit( $datemonth_abbrev ), $dateformatstring ); $dateformatstring = preg_replace( "/([^\\\])a/", "\\1" . backslashit( $datemeridiem ), $dateformatstring ); $dateformatstring = preg_replace( "/([^\\\])A/", "\\1" . backslashit( $datemeridiem_capital ), $dateformatstring ); $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 ); }