作曲家翻译蒂尔德

Question

How is the tilde interpreted? An example is

"require":{
  symfony/config": "~2.3"
}

Does that mean chose the closest version to 2.3 either up or down?

Answer 1

Have a look at the documentation: http://getcomposer.org/doc/01-basic-usage.md#package-versions

Next Significant Release (Tilde Operator): The ~ operator is best explained by example: ~1.2 is equivalent to >=1.2,<2.0 , while ~1.2.3 is equivalent to >=1.2.3,<1.3

It'll install at least that required version, but not a version that increments the next bigger bit of the version number.