171 lines
5.5 KiB
PHP
171 lines
5.5 KiB
PHP
<?php
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/*
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* This work of Lionel SAURON (http://sauron.lionel.free.fr:80) is licensed under the
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* Creative Commons Attribution 2.0 France License.
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*
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* To view a copy of this license, visit http://creativecommons.org/licenses/by/2.0/fr/
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* or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.
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*/
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if (!function_exists('strptime')) {
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/**
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* Parse a time/date generated with strftime().
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*
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* This function is the same as the original one defined by PHP (Linux/Unix only),
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* but now you can use it on Windows too.
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* Limitation : Only this format can be parsed %S, %M, %H, %d, %m, %Y
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*
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* @author Lionel SAURON
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* @version 1.0
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* @public
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*
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* @param $sDate (string) The string to parse (e.g. returned from strftime()).
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* @param $sFormat (string) The format used in date (e.g. the same as used in strftime()).
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* @return (array) Returns an array with the <code>$sDate</code> parsed, or <code>false</code> on error.
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*/
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function strptime($sDate, $sFormat)
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{
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$aResult = array(
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'tm_sec' => 0,
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'tm_min' => 0,
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'tm_hour' => 0,
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'tm_mday' => 1,
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'tm_mon' => 0,
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'tm_year' => 0,
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'tm_wday' => 0,
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'tm_yday' => 0,
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'unparsed' => $sDate,
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);
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while ($sFormat != "") {
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// ===== Search a %x element, Check the static string before the %x =====
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$nIdxFound = strpos($sFormat, '%');
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if ($nIdxFound === false) {
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// There is no more format. Check the last static string.
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$aResult['unparsed'] = ($sFormat == $sDate) ? "" : $sDate;
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break;
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}
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$sFormatBefore = substr($sFormat, 0, $nIdxFound);
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$sDateBefore = substr($sDate, 0, $nIdxFound);
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if ($sFormatBefore != $sDateBefore) {
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break;
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}
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// ===== Read the value of the %x found =====
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$sFormat = substr($sFormat, $nIdxFound);
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$sDate = substr($sDate, $nIdxFound);
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$aResult['unparsed'] = $sDate;
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$sFormatCurrent = substr($sFormat, 0, 2);
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$sFormatAfter = substr($sFormat, 2);
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$nValue = -1;
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$sDateAfter = "";
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switch ($sFormatCurrent) {
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case '%S': // Seconds after the minute (0-59)
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sscanf($sDate, "%2d%[^\\n]", $nValue, $sDateAfter);
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if (($nValue < 0) || ($nValue > 59)) {
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return false;
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}
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$aResult['tm_sec'] = $nValue;
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break;
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// ----------
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case '%M': // Minutes after the hour (0-59)
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sscanf($sDate, "%2d%[^\\n]", $nValue, $sDateAfter);
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if (($nValue < 0) || ($nValue > 59)) {
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return false;
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}
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$aResult['tm_min'] = $nValue;
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break;
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// ----------
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case '%H': // Hour since midnight (0-23)
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sscanf($sDate, "%2d%[^\\n]", $nValue, $sDateAfter);
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if (($nValue < 0) || ($nValue > 23)) {
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return false;
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}
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$aResult['tm_hour'] = $nValue;
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break;
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// ----------
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case '%d': // Day of the month (1-31)
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sscanf($sDate, "%2d%[^\\n]", $nValue, $sDateAfter);
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if (($nValue < 1) || ($nValue > 31)) {
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return false;
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}
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$aResult['tm_mday'] = $nValue;
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break;
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// ----------
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case '%m': // Months since January (0-11)
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sscanf($sDate, "%2d%[^\\n]", $nValue, $sDateAfter);
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if (($nValue < 1) || ($nValue > 12)) {
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return false;
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}
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$aResult['tm_mon'] = ($nValue - 1);
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break;
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// ----------
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case '%Y': // Years since 1900
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sscanf($sDate, "%4d%[^\\n]", $nValue, $sDateAfter);
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if ($nValue < 1900) {
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return false;
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}
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$aResult['tm_year'] = ($nValue - 1900);
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break;
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// ----------
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default:
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break 2; // Break Switch and while
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} // END of case format
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// ===== Next please =====
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$sFormat = $sFormatAfter;
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$sDate = $sDateAfter;
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$aResult['unparsed'] = $sDate;
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} // END of while($sFormat != "")
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// ===== Create the other value of the result array =====
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$nParsedDateTimestamp = mktime($aResult['tm_hour'], $aResult['tm_min'],
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$aResult['tm_sec'],
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$aResult['tm_mon'] + 1, $aResult['tm_mday'],
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$aResult['tm_year'] + 1900);
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// Before PHP 5.1 return -1 when error
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if (($nParsedDateTimestamp === false)
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|| ($nParsedDateTimestamp === -1)
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) {
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return false;
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}
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$aResult['tm_wday'] = (int)strftime("%w",
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$nParsedDateTimestamp); // Days since Sunday (0-6)
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$aResult['tm_yday'] = (strftime("%j",
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$nParsedDateTimestamp) - 1); // Days since January 1 (0-365)
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return $aResult;
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} // END of function
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}
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