Online PHP editor | rfc for 8berF

@ 2015-10-27T17:01:40Z

<?php
class Foo { public $bar; }
$foo = new Foo;
$blanks = array(
    "string(empty) \"\"" => "", 
    "string(space) \" \"" => " ", 
    "bool(false)" => FALSE, 
    "bool(true)" => TRUE, 
    "array(empty) {}" => array(), 
    "NULL" => NULL, 
    "string(\"zero\") \"0\"" => "0", 
    "int(0)" => 0, 
    "float(0.0)" => 0.0, 
    "object(stdClass)# (empty) {}" => new stdClass, 
    "public \$bar" => $foo->bar, 
    "string(null byte) \"\\0\"" => "\0"
);


$headings = array('type', 'if', 'isset', 'empty', 'is_null');
foreach(array($headings, array_keys($blanks)) as $ord => $arr){
    foreach($arr as $val){
        static $max = 0;
        if(strlen($val) > $max){ $max = strlen($val); }
    }
    ${"pad_$ord"} = $max;
}

foreach($headings as $i => $heading){
    echo str_pad($heading, $i == 0 ? $pad_1 : $pad_0), " | ";
}
echo "\n";

$true = str_pad("TRUE", $pad_1) . " | ";
$false = str_pad("", $pad_1) . " | ";

foreach($blanks as $readable => $blank){
    echo str_pad($readable, $pad_1), " | ";
    echo         $blank  ? $true : $false;
    echo   isset($blank) ? $true : $false;
    echo   empty($blank) ? $true : $false;
    echo is_null($blank) ? $true : $false;
    echo "\n";
}

Output for git.master, git.master_jit, rfc.property-hooks: type | if | isset | empty | is_null | string(empty) "" | | TRUE | TRUE | | string(space) " " | TRUE | TRUE | | | bool(false) | | TRUE | TRUE | | bool(true) | TRUE | TRUE | | | array(empty) {} | | TRUE | TRUE | | NULL | | | TRUE | TRUE | string("zero") "0" | | TRUE | TRUE | | int(0) | | TRUE | TRUE | | float(0.0) | | TRUE | TRUE | | object(stdClass)# (empty) {} | TRUE | TRUE | | | public $bar | | | TRUE | TRUE | string(null byte) "\0" | TRUE | TRUE | | |

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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