Online PHP editor | rfc for hmHsT

@ 2024-06-19T12:04:51Z

<?php

function accept_int(int $value) {
    return $value;
}
function accept_float(float $value) {
    return $value;
}
function accept_string(string $value) {
    return $value;
}
function accept_bool(bool $value) {
    return $value;
}


$scalarTypes = ['int', 'float', 'string', 'bool'];

$data = [
    'int' => 1,
    'int-negative' => -1,
    'int-zero' => 0,
    'float' => 1.2,
    'float-negative' => -1.2,
    'float-int' => 1.0,
    'float-zero' => 0.0,
    'string' => 'abc',
    'string-empty' => '',
    'string-space' => ' ',
    'string-int' => '1',
    'string-int-negative' => '-1',
    'string-int-zero' => '0',
    'string-int-spacepad' => ' 1',
    'string-int-start' => '1abc',
    'string-int-start-spacepad' => ' 1abc',
    'string-float' => '1.2',
    'string-float-negative' => '-1.2',
    'string-float-int' => '1.0',
    'string-float-zero' => '0.0',
    'string-float-spacepad' => ' 1.2',
    'string-float-spacepad-negative' => ' -1.2',
    'string-float-start' => '1.2abc',
    'string-float-start-negative' => '-1.2abc',
    'string-float-start-spacepad' => ' 1.2abc',
    'string-float-start-spacepad-negative' => ' -1.2abc',
    'bool-true' => true,
    'bool-false' => false,
];

function printValue($value) {
    if (is_string($value)) {
        return "\"$value\"";
    }
    if (is_bool($value)) {
        return $value ? 'true' : 'false';
    }
    if (is_float($value)) {
        return number_format($value, 1);
    }

    return $value;
}

$resultsTable = [];
foreach ($scalarTypes as $type) {
    foreach ($data as $key => $value) {
        $lineKey = $key . ': ' . printValue($value);

        $acceptFunction = "accept_$type";
        try {
            $deprecatedFlag = false;
            $noticeFlag = false;
            set_error_handler(function (int $errno, string $errstr) use (&$deprecatedFlag, &$noticeFlag) {
                if ($errno === E_NOTICE) {
                    $noticeFlag = true;
                } else {
                    $deprecatedFlag = true;
                }
                echo $errstr . "\n";
            }, E_DEPRECATED | E_NOTICE);
            $result = $acceptFunction($value);
            set_error_handler(null);
            if ($result === $value) {
                $op = 'ok';
            } else {
                $op = 'coerced to ' . printValue($result);
                if ($deprecatedFlag) {
                    $op .= ' (D)';
                }
                if ($noticeFlag) {
                    $op .= ' (N)';
                }
            }
        } catch (Throwable $e) {
            $op = 'error';
        }
        if (!isset($resultsTable[$lineKey])) {
            $resultsTable[$lineKey] = [];
        }
        $resultsTable[$lineKey][$type] = "$op";
    }
}

echo "\n\nResults table:\n\n";

echo ' | ' . str_pad('data type: data', 50, ' ', STR_PAD_LEFT) . ' | ';
foreach ($scalarTypes as $type) {
    echo str_pad($type, 20) . ' | ';
}
echo "\n";

echo ' | ' . str_pad('', 50, '-') . ' | ';
foreach ($scalarTypes as $type) {
    echo str_pad('', 20, '-') . ' | ';
}
echo "\n";

foreach ($resultsTable as $key => $results) {
    echo ' | ' . str_pad($key, 50, ' ', STR_PAD_LEFT) . ' | ';
    foreach ($results as $type => $result) {
        echo str_pad($result, 20) . ' | ';
    }
    echo "\n";
}

Output for git.master, git.master_jit, rfc.property-hooks: Implicit conversion from float 1.2 to int loses precision Implicit conversion from float -1.2 to int loses precision Implicit conversion from float-string "1.2" to int loses precision Implicit conversion from float-string "-1.2" to int loses precision Implicit conversion from float-string " 1.2" to int loses precision Implicit conversion from float-string " -1.2" to int loses precision Results table: | data type: data | int | float | string | bool | | -------------------------------------------------- | -------------------- | -------------------- | -------------------- | -------------------- | | int: 1 | ok | coerced to 1.0 | coerced to "1" | coerced to true | | int-negative: -1 | ok | coerced to -1.0 | coerced to "-1" | coerced to true | | int-zero: 0 | ok | coerced to 0.0 | coerced to "0" | coerced to false | | float: 1.2 | coerced to 1 (D) | ok | coerced to "1.2" | coerced to true | | float-negative: -1.2 | coerced to -1 (D) | ok | coerced to "-1.2" | coerced to true | | float-int: 1.0 | coerced to 1 | ok | coerced to "1" | coerced to true | | float-zero: 0.0 | coerced to 0 | ok | coerced to "0" | coerced to false | | string: "abc" | error | error | ok | coerced to true | | string-empty: "" | error | error | ok | coerced to false | | string-space: " " | error | error | ok | coerced to true | | string-int: "1" | coerced to 1 | coerced to 1.0 | ok | coerced to true | | string-int-negative: "-1" | coerced to -1 | coerced to -1.0 | ok | coerced to true | | string-int-zero: "0" | coerced to 0 | coerced to 0.0 | ok | coerced to false | | string-int-spacepad: " 1" | coerced to 1 | coerced to 1.0 | ok | coerced to true | | string-int-start: "1abc" | error | error | ok | coerced to true | | string-int-start-spacepad: " 1abc" | error | error | ok | coerced to true | | string-float: "1.2" | coerced to 1 (D) | coerced to 1.2 | ok | coerced to true | | string-float-negative: "-1.2" | coerced to -1 (D) | coerced to -1.2 | ok | coerced to true | | string-float-int: "1.0" | coerced to 1 | coerced to 1.0 | ok | coerced to true | | string-float-zero: "0.0" | coerced to 0 | coerced to 0.0 | ok | coerced to true | | string-float-spacepad: " 1.2" | coerced to 1 (D) | coerced to 1.2 | ok | coerced to true | | string-float-spacepad-negative: " -1.2" | coerced to -1 (D) | coerced to -1.2 | ok | coerced to true | | string-float-start: "1.2abc" | error | error | ok | coerced to true | | string-float-start-negative: "-1.2abc" | error | error | ok | coerced to true | | string-float-start-spacepad: " 1.2abc" | error | error | ok | coerced to true | | string-float-start-spacepad-negative: " -1.2abc" | error | error | ok | coerced to true | | bool-true: true | coerced to 1 | coerced to 1.0 | coerced to "1" | ok | | bool-false: false | coerced to 0 | coerced to 0.0 | coerced to "" | ok |

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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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