Online PHP editor | output for 3g0Yk

@ 2023-10-11T04:27:44Z

<?php

$whitespaces = [
    'character tabulation' => "\u{0009}",
    'line feed' => "\u{000A}",
    'line tabulation' => "\u{000B}",
    'form feed' => "\u{000C}",
    'carriage return' => "\u{000D}",
    'space' => "\u{0020}",
    'next line' => "\u{0085}",
    'no-break space' => "\u{00A0}",
    'ogham space mark' => "\u{1680}",
    'mongolian vowel separator' => "\u{180E}",
    'en quad' => "\u{2000}",
    'em quad' => "\u{2001}",
    'en space' => "\u{2002}",
    'em space' => "\u{2003}",
    'three-per-em space' => "\u{2004}",
    'four-per-em space' => "\u{2005}",
    'six-per-em space' => "\u{2006}",
    'figure space' => "\u{2007}",
    'punctuation space' => "\u{2008}",
    'thin space' => "\u{2009}",
    'hair space' => "\u{200A}",
    'zero width space' => "\u{200B}",
    'zero width non-joiner' => "\u{200C}",
    'zero width joiner' => "\u{200D}",
    'line separator' => "\u{2028}",
    'paragraph separator' => "\u{2029}",
    'narrow no-break space' => "\u{202F}",
    'medium mathematical space' => "\u{205F}",
    'word joiner' => "\u{2060}",
    'ideographic space' => "\u{3000}",
    'zero width non-breaking space' => "\u{FEFF}"
];

$patterns = [
    '/\s+/',
    '/\s+/u',
    '/\pZ+/u',
    '/\pC+/u',
    '/[\pZ\pC]+/u',
    '/[\x{0009}-\x{000D}\x{0020}\x{0085}\x{00A0}\x{1680}\x{180E}\x{2000}-\x{200D}\x{2028}-\x{202F}\x{205F}\x{2060}\x{3000}\x{FEFF}]+/ux',
];

printf("\n|%-30s |", 'whitespace characters');
foreach ($patterns as $pattern) {
    printf(" %-12s |", $pattern);
}

printf("\n|%s%s|", str_repeat('-', 31), str_repeat('|:' . str_repeat('-', 12) . ':', count($patterns)));

foreach ($whitespaces as $name => $char) {
    printf("\n|%30s |", $name);
    foreach ($patterns as $pattern) {
        printf(" %-13s |", mb_strlen(preg_replace($pattern, '', $char)) ? '❌' : '✅');
    }
}

Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: |whitespace characters | /\s+/ | /\s+/u | /\pZ+/u | /\pC+/u | /[\pZ\pC]+/u | /[\x{0009}-\x{000D}\x{0020}\x{0085}\x{00A0}\x{1680}\x{180E}\x{2000}-\x{200D}\x{2028}-\x{202F}\x{205F}\x{2060}\x{3000}\x{FEFF}]+/ux | |-------------------------------|:------------:|:------------:|:------------:|:------------:|:------------:|:------------:| | character tabulation | ✅ | ✅ | ❌ | ✅ | ✅ | ✅ | | line feed | ✅ | ✅ | ❌ | ✅ | ✅ | ✅ | | line tabulation | ✅ | ✅ | ❌ | ✅ | ✅ | ✅ | | form feed | ✅ | ✅ | ❌ | ✅ | ✅ | ✅ | | carriage return | ✅ | ✅ | ❌ | ✅ | ✅ | ✅ | | space | ✅ | ✅ | ✅ | ❌ | ✅ | ✅ | | next line | ❌ | ✅ | ❌ | ✅ | ✅ | ✅ | | no-break space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | ogham space mark | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | mongolian vowel separator | ❌ | ✅ | ❌ | ✅ | ✅ | ✅ | | en quad | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | em quad | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | en space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | em space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | three-per-em space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | four-per-em space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | six-per-em space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | figure space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | punctuation space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | thin space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | hair space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | zero width space | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ | | zero width non-joiner | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ | | zero width joiner | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ | | line separator | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | paragraph separator | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | narrow no-break space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | medium mathematical space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | word joiner | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ | | ideographic space | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ | | zero width non-breaking space | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ |

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