PHP 忒聊 綴豖 ヶ輛 version_compare (PHP 4 = 4.1.0) Description version_compare() compares two "PHP-standardized" version number strings. This is useful if you would like to write programs working only on some versions of PHP. version_compare() returns -1 if the first version is lower than the second, 0 if they are equal, and +1 if the second is lower. If you specify the third optional operator argument, you can test for a particular relationship. The possible operators are:, lt, =, le,, gt, =, ge, ==, =, eq, !=,, ne respectively. Using this argument, the function will return 1 if the relationship is the one specified by the operator, 0 otherwise. 瞰赽 1. version_compare() Example // prints -1 echo version_compare("4.0.4", "4.0.6"); // these all print 1 echo version_compare("4.0.4", "4.0.6", ""); echo version_compare("4.0.6", "4.0.6", "eq"); 綴豖 れ萸 ヶ輛 set_time_limit 奻珨撰 zend_logo_guid