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Diffstat (limited to 'import.functions.php')
| -rw-r--r-- | import.functions.php | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/import.functions.php b/import.functions.php new file mode 100644 index 0000000..d5407b7 --- /dev/null +++ b/import.functions.php @@ -0,0 +1,78 @@ +<? + + + /** + * Create the 'extended version' of the original versions, + * which is basically numerical version schemes padded + * with zeroes to be able to be sorted numerically. + * + * @param array indexed array of original versions (pv) + * @return array of extended versions with original version as key + */ + function extendVersions($arr) { + + if(!count($arr)) + return array(); + + // Check if we have any dots in versions + // If we don't, it's fine as is -- just pad the zeroes + if(!(count($arr) && preg_grep('/\./', $arr))) { + + foreach($arr as $value) { + $max = max($max, strlen($value)); + } + + foreach($arr as $key => $value) { + $ext[$key] = str_pad($value, $max, 0, STR_PAD_LEFT); + } + + return $ext; + + } + + // Keep a count of the max number of version breaks (dots) + // array('1.2', '2.12.3') would have a max of 2. + $max = 0; + foreach($arr as $key => $str) { + + $max = max($max, substr_count($str, '.')); + $arr_extended[$key] = explode('.', $str); + } + + $max++; + + // Get the max *numerical* lengths for each split + // 2.12.3 would create: array(1, 2, 1); + foreach($arr_extended as $tmp) { + foreach($tmp as $key => $value) { + $value = preg_replace('/\D/', '', $value); + $arr_max_strlen[$key] = max($arr_max_strlen[$key], strlen($value)); + } + } + + // Now pad everything to the extended version + foreach($arr as $key => $value) { + + // Split the version into each of its dot values + $explode = explode(".", $value); + + // Pad and/or create the version for each dot version + for($x = 0; $x < $max; $x++) { + + // Yes, you *have* to pad the first number too. Otherwise PHP + // will compare it wrong if there's more than one decimal point. + if($x == 0) + $ext[$key] = str_pad($explode[$x], $arr_max_strlen[$x], 0, STR_PAD_LEFT); + if($x > 0) + $ext[$key] .= ".".str_pad($explode[$x], $arr_max_strlen[$x], 0, STR_PAD_LEFT); + + } + + } + + asort($ext); + + return $ext; + + } +?>
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