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@ 2015-05-28T13:07:24Z

<?php

define(

    'FLOAT',

    ';\s*?q=
    (1|0                            # 1 or 0
        (\.                         # Literal dot
            ([0-9]{1,2}[1-9]|       # One or Two Zeroes followed by 1...9 -OR-
             [0-9][1-9][0-9]?|      # Zero followed by 1...9, followed by an optional 0...9 -OR-
             [1-9]                  # 1...9 followed by:
                ([0-9]{0,2}|        # None and up to Two 0...9 -OR-
                 [0-9][1-9]|        # 0...9 and then followed by 1...9 -OR-
                 [1-9]{1,2}         # 1...9 once and up to three
                )
             )(?![0-9])
        )?                          # All this is optional, and refers to float range
        (?!\.)
    )'
);

preg_match( sprintf( '@(?<params>%s)@x', FLOAT ), ';q=0.3444', $matches );

var_dump( $matches );

Output for git.master, git.master_jit, rfc.property-hooks: array(0) { }

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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