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是否有 PHP 函数可以将命名的 HTML 实体转换为它们各自的数字 HTML 实体？
例如:
$str = "Oggi è un bel giorno";
echo entities_to_unicode($str); // Oggi è un bel giorno
提前致谢，祝您有美好的一天!
最佳答案
您正在寻找一个简单的转换函数，将命名的 HTML 实体转换为对应的数字。
这可以通过使用转换表(即数组)和字符串转换函数(strtr)来完成:
$translated = strtr($string, $HTML401NamedToNumeric);
这适用于 UTF-8 编码或单字节字符集的 $string。
上面使用的由 W3C 指定的 HTML 4.01 命名实体的示例数组如下。它包含 252 个实体。如果要支持XHTML，那么还有一个(我放在最后):
$HTML401NamedToNumeric = array(
' ' => ' ', # no-break space = non-breaking space, U+00A0 ISOnum
'¡' => '¡', # inverted exclamation mark, U+00A1 ISOnum
'¢' => '¢', # cent sign, U+00A2 ISOnum
'£' => '£', # pound sign, U+00A3 ISOnum
'¤' => '¤', # currency sign, U+00A4 ISOnum
'¥' => '¥', # yen sign = yuan sign, U+00A5 ISOnum
'¦' => '¦', # broken bar = broken vertical bar, U+00A6 ISOnum
'§' => '§', # section sign, U+00A7 ISOnum
'¨' => '¨', # diaeresis = spacing diaeresis, U+00A8 ISOdia
'©' => '©', # copyright sign, U+00A9 ISOnum
'ª' => 'ª', # feminine ordinal indicator, U+00AA ISOnum
'«' => '«', # left-pointing double angle quotation mark = left pointing guillemet, U+00AB ISOnum
'¬' => '¬', # not sign, U+00AC ISOnum
'­' => '­', # soft hyphen = discretionary hyphen, U+00AD ISOnum
'®' => '®', # registered sign = registered trade mark sign, U+00AE ISOnum
'¯' => '¯', # macron = spacing macron = overline = APL overbar, U+00AF ISOdia
'°' => '°', # degree sign, U+00B0 ISOnum
'±' => '±', # plus-minus sign = plus-or-minus sign, U+00B1 ISOnum
'²' => '²', # superscript two = superscript digit two = squared, U+00B2 ISOnum
'³' => '³', # superscript three = superscript digit three = cubed, U+00B3 ISOnum
'´' => '´', # acute accent = spacing acute, U+00B4 ISOdia
'µ' => 'µ', # micro sign, U+00B5 ISOnum
'¶' => '¶', # pilcrow sign = paragraph sign, U+00B6 ISOnum
'·' => '·', # middle dot = Georgian comma = Greek middle dot, U+00B7 ISOnum
'¸' => '¸', # cedilla = spacing cedilla, U+00B8 ISOdia
'¹' => '¹', # superscript one = superscript digit one, U+00B9 ISOnum
'º' => 'º', # masculine ordinal indicator, U+00BA ISOnum
'»' => '»', # right-pointing double angle quotation mark = right pointing guillemet, U+00BB ISOnum
'¼' => '¼', # vulgar fraction one quarter = fraction one quarter, U+00BC ISOnum
'½' => '½', # vulgar fraction one half = fraction one half, U+00BD ISOnum
'¾' => '¾', # vulgar fraction three quarters = fraction three quarters, U+00BE ISOnum
'¿' => '¿', # inverted question mark = turned question mark, U+00BF ISOnum
'À' => 'À', # latin capital letter A with grave = latin capital letter A grave, U+00C0 ISOlat1
'Á' => 'Á', # latin capital letter A with acute, U+00C1 ISOlat1
'Â' => 'Â', # latin capital letter A with circumflex, U+00C2 ISOlat1
'Ã' => 'Ã', # latin capital letter A with tilde, U+00C3 ISOlat1
'Ä' => 'Ä', # latin capital letter A with diaeresis, U+00C4 ISOlat1
'Å' => 'Å', # latin capital letter A with ring above = latin capital letter A ring, U+00C5 ISOlat1
'Æ' => 'Æ', # latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1
'Ç' => 'Ç', # latin capital letter C with cedilla, U+00C7 ISOlat1
'È' => 'È', # latin capital letter E with grave, U+00C8 ISOlat1
'É' => 'É', # latin capital letter E with acute, U+00C9 ISOlat1
'Ê' => 'Ê', # latin capital letter E with circumflex, U+00CA ISOlat1
'Ë' => 'Ë', # latin capital letter E with diaeresis, U+00CB ISOlat1
'Ì' => 'Ì', # latin capital letter I with grave, U+00CC ISOlat1
'Í' => 'Í', # latin capital letter I with acute, U+00CD ISOlat1
'Î' => 'Î', # latin capital letter I with circumflex, U+00CE ISOlat1
'Ï' => 'Ï', # latin capital letter I with diaeresis, U+00CF ISOlat1
'Ð' => 'Ð', # latin capital letter ETH, U+00D0 ISOlat1
'Ñ' => 'Ñ', # latin capital letter N with tilde, U+00D1 ISOlat1
'Ò' => 'Ò', # latin capital letter O with grave, U+00D2 ISOlat1
'Ó' => 'Ó', # latin capital letter O with acute, U+00D3 ISOlat1
'Ô' => 'Ô', # latin capital letter O with circumflex, U+00D4 ISOlat1
'Õ' => 'Õ', # latin capital letter O with tilde, U+00D5 ISOlat1
'Ö' => 'Ö', # latin capital letter O with diaeresis, U+00D6 ISOlat1
'×' => '×', # multiplication sign, U+00D7 ISOnum
'Ø' => 'Ø', # latin capital letter O with stroke = latin capital letter O slash, U+00D8 ISOlat1
'Ù' => 'Ù', # latin capital letter U with grave, U+00D9 ISOlat1
'Ú' => 'Ú', # latin capital letter U with acute, U+00DA ISOlat1
'Û' => 'Û', # latin capital letter U with circumflex, U+00DB ISOlat1
'Ü' => 'Ü', # latin capital letter U with diaeresis, U+00DC ISOlat1
'Ý' => 'Ý', # latin capital letter Y with acute, U+00DD ISOlat1
'Þ' => 'Þ', # latin capital letter THORN, U+00DE ISOlat1
'ß' => 'ß', # latin small letter sharp s = ess-zed, U+00DF ISOlat1
'à' => 'à', # latin small letter a with grave = latin small letter a grave, U+00E0 ISOlat1
'á' => 'á', # latin small letter a with acute, U+00E1 ISOlat1
'â' => 'â', # latin small letter a with circumflex, U+00E2 ISOlat1
'ã' => 'ã', # latin small letter a with tilde, U+00E3 ISOlat1
'ä' => 'ä', # latin small letter a with diaeresis, U+00E4 ISOlat1
'å' => 'å', # latin small letter a with ring above = latin small letter a ring, U+00E5 ISOlat1
'æ' => 'æ', # latin small letter ae = latin small ligature ae, U+00E6 ISOlat1
'ç' => 'ç', # latin small letter c with cedilla, U+00E7 ISOlat1
'è' => 'è', # latin small letter e with grave, U+00E8 ISOlat1
'é' => 'é', # latin small letter e with acute, U+00E9 ISOlat1
'ê' => 'ê', # latin small letter e with circumflex, U+00EA ISOlat1
'ë' => 'ë', # latin small letter e with diaeresis, U+00EB ISOlat1
'ì' => 'ì', # latin small letter i with grave, U+00EC ISOlat1
'í' => 'í', # latin small letter i with acute, U+00ED ISOlat1
'î' => 'î', # latin small letter i with circumflex, U+00EE ISOlat1
'ï' => 'ï', # latin small letter i with diaeresis, U+00EF ISOlat1
'ð' => 'ð', # latin small letter eth, U+00F0 ISOlat1
'ñ' => 'ñ', # latin small letter n with tilde, U+00F1 ISOlat1
'ò' => 'ò', # latin small letter o with grave, U+00F2 ISOlat1
'ó' => 'ó', # latin small letter o with acute, U+00F3 ISOlat1
'ô' => 'ô', # latin small letter o with circumflex, U+00F4 ISOlat1
'õ' => 'õ', # latin small letter o with tilde, U+00F5 ISOlat1
'ö' => 'ö', # latin small letter o with diaeresis, U+00F6 ISOlat1
'÷' => '÷', # division sign, U+00F7 ISOnum
'ø' => 'ø', # latin small letter o with stroke, = latin small letter o slash, U+00F8 ISOlat1
'ù' => 'ù', # latin small letter u with grave, U+00F9 ISOlat1
'ú' => 'ú', # latin small letter u with acute, U+00FA ISOlat1
'û' => 'û', # latin small letter u with circumflex, U+00FB ISOlat1
'ü' => 'ü', # latin small letter u with diaeresis, U+00FC ISOlat1
'ý' => 'ý', # latin small letter y with acute, U+00FD ISOlat1
'þ' => 'þ', # latin small letter thorn, U+00FE ISOlat1
'ÿ' => 'ÿ', # latin small letter y with diaeresis, U+00FF ISOlat1
'ƒ' => 'ƒ', # latin small f with hook = function = florin, U+0192 ISOtech
'Α' => 'Α', # greek capital letter alpha, U+0391
'Β' => 'Β', # greek capital letter beta, U+0392
'Γ' => 'Γ', # greek capital letter gamma, U+0393 ISOgrk3
'Δ' => 'Δ', # greek capital letter delta, U+0394 ISOgrk3
'Ε' => 'Ε', # greek capital letter epsilon, U+0395
'Ζ' => 'Ζ', # greek capital letter zeta, U+0396
'Η' => 'Η', # greek capital letter eta, U+0397
'Θ' => 'Θ', # greek capital letter theta, U+0398 ISOgrk3
'Ι' => 'Ι', # greek capital letter iota, U+0399
'Κ' => 'Κ', # greek capital letter kappa, U+039A
'Λ' => 'Λ', # greek capital letter lambda, U+039B ISOgrk3
'Μ' => 'Μ', # greek capital letter mu, U+039C
'Ν' => 'Ν', # greek capital letter nu, U+039D
'Ξ' => 'Ξ', # greek capital letter xi, U+039E ISOgrk3
'Ο' => 'Ο', # greek capital letter omicron, U+039F
'Π' => 'Π', # greek capital letter pi, U+03A0 ISOgrk3
'Ρ' => 'Ρ', # greek capital letter rho, U+03A1
'Σ' => 'Σ', # greek capital letter sigma, U+03A3 ISOgrk3
'Τ' => 'Τ', # greek capital letter tau, U+03A4
'Υ' => 'Υ', # greek capital letter upsilon, U+03A5 ISOgrk3
'Φ' => 'Φ', # greek capital letter phi, U+03A6 ISOgrk3
'Χ' => 'Χ', # greek capital letter chi, U+03A7
'Ψ' => 'Ψ', # greek capital letter psi, U+03A8 ISOgrk3
'Ω' => 'Ω', # greek capital letter omega, U+03A9 ISOgrk3
'α' => 'α', # greek small letter alpha, U+03B1 ISOgrk3
'β' => 'β', # greek small letter beta, U+03B2 ISOgrk3
'γ' => 'γ', # greek small letter gamma, U+03B3 ISOgrk3
'δ' => 'δ', # greek small letter delta, U+03B4 ISOgrk3
'ε' => 'ε', # greek small letter epsilon, U+03B5 ISOgrk3
'ζ' => 'ζ', # greek small letter zeta, U+03B6 ISOgrk3
'η' => 'η', # greek small letter eta, U+03B7 ISOgrk3
'θ' => 'θ', # greek small letter theta, U+03B8 ISOgrk3
'ι' => 'ι', # greek small letter iota, U+03B9 ISOgrk3
'κ' => 'κ', # greek small letter kappa, U+03BA ISOgrk3
'λ' => 'λ', # greek small letter lambda, U+03BB ISOgrk3
'μ' => 'μ', # greek small letter mu, U+03BC ISOgrk3
'ν' => 'ν', # greek small letter nu, U+03BD ISOgrk3
'ξ' => 'ξ', # greek small letter xi, U+03BE ISOgrk3
'ο' => 'ο', # greek small letter omicron, U+03BF NEW
'π' => 'π', # greek small letter pi, U+03C0 ISOgrk3
'ρ' => 'ρ', # greek small letter rho, U+03C1 ISOgrk3
'ς' => 'ς', # greek small letter final sigma, U+03C2 ISOgrk3
'σ' => 'σ', # greek small letter sigma, U+03C3 ISOgrk3
'τ' => 'τ', # greek small letter tau, U+03C4 ISOgrk3
'υ' => 'υ', # greek small letter upsilon, U+03C5 ISOgrk3
'φ' => 'φ', # greek small letter phi, U+03C6 ISOgrk3
'χ' => 'χ', # greek small letter chi, U+03C7 ISOgrk3
'ψ' => 'ψ', # greek small letter psi, U+03C8 ISOgrk3
'ω' => 'ω', # greek small letter omega, U+03C9 ISOgrk3
'ϑ' => 'ϑ', # greek small letter theta symbol, U+03D1 NEW
'ϒ' => 'ϒ', # greek upsilon with hook symbol, U+03D2 NEW
'ϖ' => 'ϖ', # greek pi symbol, U+03D6 ISOgrk3
'•' => '•', # bullet = black small circle, U+2022 ISOpub
'…' => '…', # horizontal ellipsis = three dot leader, U+2026 ISOpub
'′' => '′', # prime = minutes = feet, U+2032 ISOtech
'″' => '″', # double prime = seconds = inches, U+2033 ISOtech
'‾' => '‾', # overline = spacing overscore, U+203E NEW
'⁄' => '⁄', # fraction slash, U+2044 NEW
'℘' => '℘', # script capital P = power set = Weierstrass p, U+2118 ISOamso
'ℑ' => 'ℑ', # blackletter capital I = imaginary part, U+2111 ISOamso
'ℜ' => 'ℜ', # blackletter capital R = real part symbol, U+211C ISOamso
'™' => '™', # trade mark sign, U+2122 ISOnum
'ℵ' => 'ℵ', # alef symbol = first transfinite cardinal, U+2135 NEW
'←' => '←', # leftwards arrow, U+2190 ISOnum
'↑' => '↑', # upwards arrow, U+2191 ISOnum
'→' => '→', # rightwards arrow, U+2192 ISOnum
'↓' => '↓', # downwards arrow, U+2193 ISOnum
'↔' => '↔', # left right arrow, U+2194 ISOamsa
'↵' => '↵', # downwards arrow with corner leftwards = carriage return, U+21B5 NEW
'⇐' => '⇐', # leftwards double arrow, U+21D0 ISOtech
'⇑' => '⇑', # upwards double arrow, U+21D1 ISOamsa
'⇒' => '⇒', # rightwards double arrow, U+21D2 ISOtech
'⇓' => '⇓', # downwards double arrow, U+21D3 ISOamsa
'⇔' => '⇔', # left right double arrow, U+21D4 ISOamsa
'∀' => '∀', # for all, U+2200 ISOtech
'∂' => '∂', # partial differential, U+2202 ISOtech
'∃' => '∃', # there exists, U+2203 ISOtech
'∅' => '∅', # empty set = null set = diameter, U+2205 ISOamso
'∇' => '∇', # nabla = backward difference, U+2207 ISOtech
'∈' => '∈', # element of, U+2208 ISOtech
'∉' => '∉', # not an element of, U+2209 ISOtech
'∋' => '∋', # contains as member, U+220B ISOtech
'∏' => '∏', # n-ary product = product sign, U+220F ISOamsb
'∑' => '∑', # n-ary sumation, U+2211 ISOamsb
'−' => '−', # minus sign, U+2212 ISOtech
'∗' => '∗', # asterisk operator, U+2217 ISOtech
'√' => '√', # square root = radical sign, U+221A ISOtech
'∝' => '∝', # proportional to, U+221D ISOtech
'∞' => '∞', # infinity, U+221E ISOtech
'∠' => '∠', # angle, U+2220 ISOamso
'∧' => '∧', # logical and = wedge, U+2227 ISOtech
'∨' => '∨', # logical or = vee, U+2228 ISOtech
'∩' => '∩', # intersection = cap, U+2229 ISOtech
'∪' => '∪', # union = cup, U+222A ISOtech
'∫' => '∫', # integral, U+222B ISOtech
'∴' => '∴', # therefore, U+2234 ISOtech
'∼' => '∼', # tilde operator = varies with = similar to, U+223C ISOtech
'≅' => '≅', # approximately equal to, U+2245 ISOtech
'≈' => '≈', # almost equal to = asymptotic to, U+2248 ISOamsr
'≠' => '≠', # not equal to, U+2260 ISOtech
'≡' => '≡', # identical to, U+2261 ISOtech
'≤' => '≤', # less-than or equal to, U+2264 ISOtech
'≥' => '≥', # greater-than or equal to, U+2265 ISOtech
'⊂' => '⊂', # subset of, U+2282 ISOtech
'⊃' => '⊃', # superset of, U+2283 ISOtech
'⊄' => '⊄', # not a subset of, U+2284 ISOamsn
'⊆' => '⊆', # subset of or equal to, U+2286 ISOtech
'⊇' => '⊇', # superset of or equal to, U+2287 ISOtech
'⊕' => '⊕', # circled plus = direct sum, U+2295 ISOamsb
'⊗' => '⊗', # circled times = vector product, U+2297 ISOamsb
'⊥' => '⊥', # up tack = orthogonal to = perpendicular, U+22A5 ISOtech
'⋅' => '⋅', # dot operator, U+22C5 ISOamsb
'⌈' => '⌈', # left ceiling = apl upstile, U+2308 ISOamsc
'⌉' => '⌉', # right ceiling, U+2309 ISOamsc
'⌊' => '⌊', # left floor = apl downstile, U+230A ISOamsc
'⌋' => '⌋', # right floor, U+230B ISOamsc
'⟨' => '〈', # left-pointing angle bracket = bra, U+2329 ISOtech
'⟩' => '〉', # right-pointing angle bracket = ket, U+232A ISOtech
'◊' => '◊', # lozenge, U+25CA ISOpub
'♠' => '♠', # black spade suit, U+2660 ISOpub
'♣' => '♣', # black club suit = shamrock, U+2663 ISOpub
'♥' => '♥', # black heart suit = valentine, U+2665 ISOpub
'♦' => '♦', # black diamond suit, U+2666 ISOpub
'"' => '"', # quotation mark = APL quote, U+0022 ISOnum
'&' => '&', # ampersand, U+0026 ISOnum
'<' => '<', # less-than sign, U+003C ISOnum
'>' => '>', # greater-than sign, U+003E ISOnum
'Œ' => 'Œ', # latin capital ligature OE, U+0152 ISOlat2
'œ' => 'œ', # latin small ligature oe, U+0153 ISOlat2
'Š' => 'Š', # latin capital letter S with caron, U+0160 ISOlat2
'š' => 'š', # latin small letter s with caron, U+0161 ISOlat2
'Ÿ' => 'Ÿ', # latin capital letter Y with diaeresis, U+0178 ISOlat2
'ˆ' => 'ˆ', # modifier letter circumflex accent, U+02C6 ISOpub
'˜' => '˜', # small tilde, U+02DC ISOdia
' ' => ' ', # en space, U+2002 ISOpub
' ' => ' ', # em space, U+2003 ISOpub
' ' => ' ', # thin space, U+2009 ISOpub
'‌' => '‌', # zero width non-joiner, U+200C NEW RFC 2070
'‍' => '‍', # zero width joiner, U+200D NEW RFC 2070
'‎' => '‎', # left-to-right mark, U+200E NEW RFC 2070
'‏' => '‏', # right-to-left mark, U+200F NEW RFC 2070
'–' => '–', # en dash, U+2013 ISOpub
'—' => '—', # em dash, U+2014 ISOpub
'‘' => '‘', # left single quotation mark, U+2018 ISOnum
'’' => '’', # right single quotation mark, U+2019 ISOnum
'‚' => '‚', # single low-9 quotation mark, U+201A NEW
'“' => '“', # left double quotation mark, U+201C ISOnum
'”' => '”', # right double quotation mark, U+201D ISOnum
'„' => '„', # double low-9 quotation mark, U+201E NEW
'†' => '†', # dagger, U+2020 ISOpub
'‡' => '‡', # double dagger, U+2021 ISOpub
'‰' => '‰', # per mille sign, U+2030 ISOtech
'‹' => '‹', # single left-pointing angle quotation mark, U+2039 ISO proposed
'›' => '›', # single right-pointing angle quotation mark, U+203A ISO proposed
'€' => '€', # euro sign, U+20AC NEW
);
还有一个用于 XHTML 的:
''' => ''', # apostrophe = APL quote, U+0027 ISOnum
关于php - 将命名的 HTML 实体转换为数字 HTML 实体，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11176752/
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通常，如果有一个属性可以获取/设置状态值，我会使用“Is”，例如: Visibility: .IsVisible 但是对于获取/设置操作的属性，最好使用什么？喜欢: Casting shadows:
好的，所以如果你可以很容易地想到一个名词，那么命名一个接口(interface)(或类)很容易:用户、窗口、数据库、流等。 形容词或形容词的概念呢？例如有时间戳的东西(HasTimestamp、Tim
我刚开始学习 PowerShell，我想知道 Posh 中的 cmdlet(或高级功能，无论它们在 CTP3 中称为什么)是否有一些好的动词指南。 如果我做一个get-verb，我可以看到很多。但我仍
$(".song").live('click', function songClick() { //do stuff }); 你能像上面那样命名一个函数，然后稍后再调用它吗？我尝试过，但没有成
关闭。这个问题是opinion-based .它目前不接受答案。 想改进这个问题？更新问题，以便 editing this post 可以用事实和引用来回答它. 7年前关闭。 Improve this
我的 Spring 应用程序中有两组类 - DTO 和实体。 在阅读了 Bob 叔叔的 Clean Code 之后，我比以往任何时候都更喜欢正确命名事物。 我坐下来重构我的一个 Spring 项目，但
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