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Diffstat (limited to 'include/functions.inc.php')
| -rw-r--r-- | include/functions.inc.php | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/functions.inc.php b/include/functions.inc.php index 616d17569..219f6dcce 100644 --- a/include/functions.inc.php +++ b/include/functions.inc.php @@ -2089,4 +2089,36 @@ SELECT COUNT(DISTINCT(com.id)) return $user['nb_available_comments']; } +/** + * Compare two versions with version_compare after having converted + * single chars to their decimal values. + * Needed because version_compare does not understand versions like '2.5.c'. + * @since 2.6 + * + * @param string $a + * @param string $b + * @param string $op + */ +function safe_version_compare($a, $b, $op=null) +{ + $replace_chars = create_function('$m', 'return ord(strtolower($m[1]));'); + + // add dot before groups of letters (version_compare does the same thing) + $a = preg_replace('#([0-9]+)([a-z]+)#i', '$1.$2', $a); + $b = preg_replace('#([0-9]+)([a-z]+)#i', '$1.$2', $b); + + // apply ord() to any single letter + $a = preg_replace_callback('#\b([a-z]{1})\b#i', $replace_chars, $a); + $b = preg_replace_callback('#\b([a-z]{1})\b#i', $replace_chars, $b); + + if (empty($op)) + { + return version_compare($a, $b); + } + else + { + return version_compare($a, $b, $op); + } +} + ?>
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