| 1 |
<?php |
| 2 |
/** |
| 3 |
* Random_* Compatibility Library |
| 4 |
* for using the new PHP 7 random_* API in PHP 5 projects |
| 5 |
* |
| 6 |
* The MIT License (MIT) |
| 7 |
* |
| 8 |
* Copyright (c) 2015 - 2018 Paragon Initiative Enterprises |
| 9 |
* |
| 10 |
* Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 |
* of this software and associated documentation files (the "Software"), to deal |
| 12 |
* in the Software without restriction, including without limitation the rights |
| 13 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 |
* copies of the Software, and to permit persons to whom the Software is |
| 15 |
* furnished to do so, subject to the following conditions: |
| 16 |
* |
| 17 |
* The above copyright notice and this permission notice shall be included in |
| 18 |
* all copies or substantial portions of the Software. |
| 19 |
* |
| 20 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 |
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 26 |
* SOFTWARE. |
| 27 |
*/ |
| 28 |
|
| 29 |
if (!is_callable('RandomCompat_intval')) { |
| 30 |
|
| 31 |
/** |
| 32 |
* Cast to an integer if we can, safely. |
| 33 |
* |
| 34 |
* If you pass it a float in the range (~PHP_INT_MAX, PHP_INT_MAX) |
| 35 |
* (non-inclusive), it will sanely cast it to an int. If you it's equal to |
| 36 |
* ~PHP_INT_MAX or PHP_INT_MAX, we let it fail as not an integer. Floats |
| 37 |
* lose precision, so the <= and => operators might accidentally let a float |
| 38 |
* through. |
| 39 |
* |
| 40 |
* @param int|float $number The number we want to convert to an int |
| 41 |
* @param bool $fail_open Set to true to not throw an exception |
| 42 |
* |
| 43 |
* @return float|int |
| 44 |
* @psalm-suppress InvalidReturnType |
| 45 |
* |
| 46 |
* @throws TypeError |
| 47 |
*/ |
| 48 |
function RandomCompat_intval($number, $fail_open = false) |
| 49 |
{ |
| 50 |
if (is_int($number) || is_float($number)) { |
| 51 |
$number += 0; |
| 52 |
} elseif (is_numeric($number)) { |
| 53 |
/** @psalm-suppress InvalidOperand */ |
| 54 |
$number += 0; |
| 55 |
} |
| 56 |
/** @var int|float $number */ |
| 57 |
|
| 58 |
if ( |
| 59 |
is_float($number) |
| 60 |
&& |
| 61 |
$number > ~PHP_INT_MAX |
| 62 |
&& |
| 63 |
$number < PHP_INT_MAX |
| 64 |
) { |
| 65 |
$number = (int) $number; |
| 66 |
} |
| 67 |
|
| 68 |
if (is_int($number)) { |
| 69 |
return (int) $number; |
| 70 |
} elseif (!$fail_open) { |
| 71 |
throw new TypeError( |
| 72 |
'Expected an integer.' |
| 73 |
); |
| 74 |
} |
| 75 |
return $number; |
| 76 |
} |
| 77 |
} |
| 78 |
|
