3 * Random_* Compatibility Library |
3 * Random_* Compatibility Library |
4 * for using the new PHP 7 random_* API in PHP 5 projects |
4 * for using the new PHP 7 random_* API in PHP 5 projects |
5 * |
5 * |
6 * The MIT License (MIT) |
6 * The MIT License (MIT) |
7 * |
7 * |
8 * Copyright (c) 2015 - 2017 Paragon Initiative Enterprises |
8 * Copyright (c) 2015 - 2018 Paragon Initiative Enterprises |
9 * |
9 * |
10 * Permission is hereby granted, free of charge, to any person obtaining a copy |
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 |
11 * of this software and associated documentation files (the "Software"), to deal |
12 * in the Software without restriction, including without limitation the rights |
12 * in the Software without restriction, including without limitation the rights |
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
26 * SOFTWARE. |
26 * SOFTWARE. |
27 */ |
27 */ |
28 |
28 |
29 if (!is_callable('RandomCompat_intval')) { |
29 if (!is_callable('RandomCompat_intval')) { |
30 |
30 |
31 /** |
31 /** |
32 * Cast to an integer if we can, safely. |
32 * Cast to an integer if we can, safely. |
33 * |
33 * |
34 * If you pass it a float in the range (~PHP_INT_MAX, PHP_INT_MAX) |
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 |
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 |
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 |
37 * lose precision, so the <= and => operators might accidentally let a float |
38 * through. |
38 * through. |
39 * |
39 * |
40 * @param int|float $number The number we want to convert to an int |
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 |
41 * @param bool $fail_open Set to true to not throw an exception |
42 * |
42 * |
43 * @return float|int |
43 * @return float|int |
44 * @psalm-suppress InvalidReturnType |
44 * @psalm-suppress InvalidReturnType |
45 * |
45 * |
46 * @throws TypeError |
46 * @throws TypeError |
47 */ |
47 */ |
48 function RandomCompat_intval($number, $fail_open = false) |
48 function RandomCompat_intval($number, $fail_open = false) |
49 { |
49 { |
50 if (is_int($number) || is_float($number)) { |
50 if (is_int($number) || is_float($number)) { |
51 $number += 0; |
51 $number += 0; |
52 } elseif (is_numeric($number)) { |
52 } elseif (is_numeric($number)) { |
|
53 /** @psalm-suppress InvalidOperand */ |
53 $number += 0; |
54 $number += 0; |
54 } |
55 } |
|
56 /** @var int|float $number */ |
55 |
57 |
56 if ( |
58 if ( |
57 is_float($number) |
59 is_float($number) |
58 && |
60 && |
59 $number > ~PHP_INT_MAX |
61 $number > ~PHP_INT_MAX |
60 && |
62 && |
61 $number < PHP_INT_MAX |
63 $number < PHP_INT_MAX |
62 ) { |
64 ) { |
63 $number = (int) $number; |
65 $number = (int) $number; |
64 } |
66 } |
65 |
67 |