diff options
Diffstat (limited to 'system/helpers/date_helper.php')
-rw-r--r-- | system/helpers/date_helper.php | 230 |
1 files changed, 153 insertions, 77 deletions
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php index 553e8d7ee..e14bc2f94 100644 --- a/system/helpers/date_helper.php +++ b/system/helpers/date_helper.php @@ -54,10 +54,8 @@ if ( ! function_exists('now')) return $system_time; } - else - { - return time(); - } + + return time(); } } @@ -85,12 +83,18 @@ if ( ! function_exists('mdate')) function mdate($datestr = '', $time = '') { if ($datestr == '') - return ''; + { + return ''; + } - if ($time == '') - $time = now(); + $time = ($time == '') ? now() : $time; + + $datestr = str_replace( + '%\\', + '', + preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr) + ); - $datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr)); return date($datestr, $time); } } @@ -162,14 +166,7 @@ if ( ! function_exists('timespan')) $time = time(); } - if ($time <= $seconds) - { - $seconds = 1; - } - else - { - $seconds = $time - $seconds; - } + $seconds = ($time <= $seconds) ? 1 : $time - $seconds; $str = ''; $years = floor($seconds / 31536000); @@ -303,9 +300,18 @@ if ( ! function_exists('local_to_gmt')) function local_to_gmt($time = '') { if ($time == '') + { $time = time(); - - return mktime( gmdate("H", $time), gmdate("i", $time), gmdate("s", $time), gmdate("m", $time), gmdate("d", $time), gmdate("Y", $time)); + } + + return mktime( + gmdate("H", $time), + gmdate("i", $time), + gmdate("s", $time), + gmdate("m", $time), + gmdate("d", $time), + gmdate("Y", $time) + ); } } @@ -366,14 +372,14 @@ if ( ! function_exists('mysql_to_unix')) $time = str_replace(' ', '', $time); // YYYYMMDDHHMMSS - return mktime( - substr($time, 8, 2), - substr($time, 10, 2), - substr($time, 12, 2), - substr($time, 4, 2), - substr($time, 6, 2), - substr($time, 0, 4) - ); + return mktime( + substr($time, 8, 2), + substr($time, 10, 2), + substr($time, 12, 2), + substr($time, 4, 2), + substr($time, 6, 2), + substr($time, 0, 4) + ); } } @@ -475,13 +481,19 @@ if ( ! function_exists('human_to_unix')) $ampm = strtolower($split['2']); if (substr($ampm, 0, 1) == 'p' AND $hour < 12) - $hour = $hour + 12; + { + $hour = $hour + 12; + } if (substr($ampm, 0, 1) == 'a' AND $hour == 12) + { $hour = '00'; - + } + if (strlen($hour) == 1) - $hour = '0'.$hour; + { + $hour = '0'.$hour; + } } return mktime($hour, $min, $sec, $month, $day, $year); @@ -491,6 +503,73 @@ if ( ! function_exists('human_to_unix')) // ------------------------------------------------------------------------ /** + * Turns many "reasonably-date-like" strings into something + * that is actually useful. This only works for dates after unix epoch. + * + * @access public + * @param string The terribly formatted date-like string + * @param string Date format to return (same as php date function) + * @return string + */ +if ( ! function_exists('nice_date')) +{ + function nice_date($bad_date = '', $format = FALSE) + { + if (empty($bad_date)) + { + return 'Unknown'; + } + + // Date like: YYYYMM + if (preg_match('/^\d{6}$/', $bad_date)) + { + if (in_array(substr($bad_date, 0, 2),array('19', '20'))) + { + $year = substr($bad_date, 0, 4); + $month = substr($bad_date, 4, 2); + } + else + { + $month = substr($bad_date, 0, 2); + $year = substr($bad_date, 2, 4); + } + + return date($format, strtotime($year . '-' . $month . '-01')); + } + + // Date Like: YYYYMMDD + if (preg_match('/^\d{8}$/',$bad_date)) + { + $month = substr($bad_date, 0, 2); + $day = substr($bad_date, 2, 2); + $year = substr($bad_date, 4, 4); + + return date($format, strtotime($month . '/01/' . $year)); + } + + // Date Like: MM-DD-YYYY __or__ M-D-YYYY (or anything in between) + if (preg_match('/^\d{1,2}-\d{1,2}-\d{4}$/',$bad_date)) + { + list($m, $d, $y) = explode('-', $bad_date); + return date($format, strtotime("{$y}-{$m}-{$d}")); + } + + // Any other kind of string, when converted into UNIX time, + // produces "0 seconds after epoc..." is probably bad... + // return "Invalid Date". + if (date('U', strtotime($bad_date)) == '0') + { + return "Invalid Date"; + } + + // It's probably a valid-ish date format already + return date($format, strtotime($bad_date)); + } +} + +// ------------------------------------------------------------------------ + +/** * Timezone Menu * * Generates a drop-down menu of timezones. @@ -508,8 +587,7 @@ if ( ! function_exists('timezone_menu')) $CI =& get_instance(); $CI->lang->load('date'); - if ($default == 'GMT') - $default = 'UTC'; + $default = ($default == 'GMT') ? 'UTC' : $default; $menu = '<select name="'.$name.'"'; @@ -552,60 +630,58 @@ if ( ! function_exists('timezones')) // some items appear to be in the wrong order $zones = array( - 'UM12' => -12, - 'UM11' => -11, - 'UM10' => -10, - 'UM95' => -9.5, - 'UM9' => -9, - 'UM8' => -8, - 'UM7' => -7, - 'UM6' => -6, - 'UM5' => -5, - 'UM45' => -4.5, - 'UM4' => -4, - 'UM35' => -3.5, - 'UM3' => -3, - 'UM2' => -2, - 'UM1' => -1, - 'UTC' => 0, - 'UP1' => +1, - 'UP2' => +2, - 'UP3' => +3, - 'UP35' => +3.5, - 'UP4' => +4, - 'UP45' => +4.5, - 'UP5' => +5, - 'UP55' => +5.5, - 'UP575' => +5.75, - 'UP6' => +6, - 'UP65' => +6.5, - 'UP7' => +7, - 'UP8' => +8, - 'UP875' => +8.75, - 'UP9' => +9, - 'UP95' => +9.5, - 'UP10' => +10, - 'UP105' => +10.5, - 'UP11' => +11, - 'UP115' => +11.5, - 'UP12' => +12, - 'UP1275' => +12.75, - 'UP13' => +13, - 'UP14' => +14 - ); + 'UM12' => -12, + 'UM11' => -11, + 'UM10' => -10, + 'UM95' => -9.5, + 'UM9' => -9, + 'UM8' => -8, + 'UM7' => -7, + 'UM6' => -6, + 'UM5' => -5, + 'UM45' => -4.5, + 'UM4' => -4, + 'UM35' => -3.5, + 'UM3' => -3, + 'UM2' => -2, + 'UM1' => -1, + 'UTC' => 0, + 'UP1' => +1, + 'UP2' => +2, + 'UP3' => +3, + 'UP35' => +3.5, + 'UP4' => +4, + 'UP45' => +4.5, + 'UP5' => +5, + 'UP55' => +5.5, + 'UP575' => +5.75, + 'UP6' => +6, + 'UP65' => +6.5, + 'UP7' => +7, + 'UP8' => +8, + 'UP875' => +8.75, + 'UP9' => +9, + 'UP95' => +9.5, + 'UP10' => +10, + 'UP105' => +10.5, + 'UP11' => +11, + 'UP115' => +11.5, + 'UP12' => +12, + 'UP1275' => +12.75, + 'UP13' => +13, + 'UP14' => +14 + ); if ($tz == '') { return $zones; } - - if ($tz == 'GMT') - $tz = 'UTC'; - + + $tz = ($tz == 'GMT') ? 'UTC' : $tz; + return ( ! isset($zones[$tz])) ? 0 : $zones[$tz]; } } - /* End of file date_helper.php */ /* Location: ./system/helpers/date_helper.php */
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