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Why this, can someone please explain. Numeric literals can contain underscores between digits. <?php 6.674_083e-11; // float 299_792_458; // decimal 0xCAFE_

Why this, can someone please explain. Numeric literals can contain underscores between digits. <?php 6.674_083e-11; // float 299_792_458; // decimal 0xCAFE_F00D; // hexadecimal 0b0101_1111; // binary ?>

deleted 7y ago
[deleted]
RadioactiveMan 7y ago
Here's the RFC for it with the "why" and discussion of the tradeoffs. https://wiki.php.net/rfc/numeric_literal_separator https://wiki.php.net/rfc/numeric_literal_separator
- GrumpyNl 7y ago
  Thanks for the link.
- tyingq 7y ago
  Underscores in numeric literals are also now pretty much a defacto standard. Java, JavaScript, Perl, Python, C#, Ruby, Rust, Swift, etc, all support it.