Online PHP editor | output 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 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: 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 | | |
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 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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