PHP 7.4 Is Released

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2 pointsbrendt_gd2 comments

Can someone explain the reason for this?

Numeric literals can contain underscores between digits.

<?php 6.674_083e-11; // float 299_792_458; // decimal 0xCAFE_F00D; // hexadecimal 0b0101_1111; // binary ?>

This is a feature supported by many languages for improving readability of large numbers in code. See https://wiki.php.net/rfc/numeric_literal_separator.