Online PHP editor | output for 7IvX4

@ 2017-04-22T04:01:08Z

<?php
var_dump(ver('3.1.0', ['1.0.1', '4.4.5', '2.3.7', '3.0.1', '3.0.0']));

/**
 * 从给定的版本号列表`$vers`中找出比指定版本号`$v`小的最大的版本号并返回
 */
function ver($v, $vers) {
  $res = false;
  sort($vers);
  foreach ($vers as $ver) {
    if ($ver <= $v) {
      $res = $ver;
    } else {
      break;
    }
  }
  return $res;
}

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: string(5) "3.0.1"
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(5) "3.0.1"

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