kk Blog —— 通用基础


date [-d @int|str] [+%s|"+%F %T"]
netstat -ltunp
sar -n DEV 1

&times被替换成x

https://www.cnblogs.com/wobeinianqing/p/7067547.html

https://www.cnblogs.com/gyfluck/p/12558079.html

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http://www.test.com/index.php?id=1×tamp=1584947618&age=10

http://www.test.com/index.php?id=1&timestamp=1584947618&age=10

htmlspecialchars

使用htmlspecialchars()函数，把预定义的字符 转成 HTML 实体

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echo htmlspecialchars($url);

http://www.test.com/index.php?id=1&timestamp=1584947618&age=10

手动转换

No.文字表記10進表記16進表記文字 Comment
001 " " " """   quotation mark = APL quote
002 & & & "&"   ampersand
003 &lt; &#60; &#x3C; "<"   less-than sign
004 &gt; &#62; &#x3E; ">"   greater-than sign
005 &nbsp; &#160; &#xA0; " "   no-break space = non-breaking space
char glyphHTML tag
  &nbsp;
¡ &iexcl;
¢ &cent;
£ &pound;
¤ &curren;
¥ &yen;
¦ &brvbar;
§ &sect;
¨ &uml;
© &copy;
ª &ordf;
« &laquo;
¬ &not;
  &shy;
® &reg;
¯ &macr;
° &deg;
± &plusmn;
² &sup2;
³ &sup3;
´ &acute;
µ &micro;
&para;
· &middot;
¸ &cedil;
¹ &sup1;
º &ordm;
» &raquo;
¼ &frac14;
½ &frac12;
¾ &frac34;
¿ &iquest;
À &Agrave;
Á &Aacute;
 &Acirc;
à &Atilde;
Ä &Auml;
Å &Aring;
Æ &AElig;
Ç &Ccedil;
È &Egrave;
É &Eacute;
Ê &Ecirc;
Ë &Euml;
Ì &Igrave;
Í &Iacute;
Î &Icirc;
Ï &Iuml;
Ð &ETH;
Ñ &Ntilde;
Ò &Ograve;
Ó &Oacute;
Ô &Ocirc;
Õ &Otilde;
Ö &Ouml;
× &times;
Ø &Oslash;
Ù &Ugrave;
Ú &Uacute;
Û &Ucirc;
Ü &Uuml;
Ý &Yacute;
Þ &THORN;
ß &szlig;
à &agrave;
á &aacute;
â &acirc;
ã &atilde;
ä &auml;
å &aring;
æ &aelig;
ç &ccedil;
è &egrave;
é &eacute;
ê &ecirc;
ë &euml;
ì &igrave;
í &iacute;
î &icirc;
ï &iuml;
ð &eth;
ñ &ntilde;
ò &ograve;
ó &oacute;
ô &ocirc;
õ &otilde;
ö &ouml;
÷ &divide;
ø &oslash;
ù &ugrave;
ú &uacute;
û &ucirc;
ü &uuml;
ý &yacute;
þ &thorn;
ÿ &yuml;

Math symbols

Latin Extended-B
char glyphHTML tag
ƒ &fnof;
 
Arrows
char glyphHTML tag
← &larr;
↑ &uarr;
→ &rarr;
↓ &darr;
↔ &harr;
↵ &crarr;
⇐ &lArr;
⇑ &uArr;
⇒ &rArr;
⇓ &dArr;
⇔ &hArr;
 
Mathematical Operators
char glyphHTML tag
∀ &forall;
∂ &part;
∃ &exist;
∅ &empty;
∇ &nabla;
∈ &isin;
∉ &notin;
∋ &ni;
∏ &prod;
∑ &sum;
− &minus;
∗ &lowast;
√ &radic;
∝ &prop;
∞ &infin;
∠ &ang;
∧ &and;
∨ &or;
∩ &cap;
∪ &cup;
∫ &int;
∴ &there4;
∼ &sim;
≅ &cong;
≈ &asymp;
≠ &ne;
≡ &equiv;
≤ &le;
≥ &ge;
⊂ &sub;
⊃ &sup;
⊄ &nsub;
⊆ &sube;
⊇ &supe;
⊕ &oplus;
⊗ &otimes;
⊥ &perp;
⋅ &sdot;
 
General Punctuation
char glyphHTML tag
• &bull;
… &hellip;
′ &prime;
″ &Prime;
‾ &oline;
⁄ &frasl;
 
Miscellaneous Technical
char glyphHTML tag
⌈ &lceil;
⌉ &rceil;
⌊ &lfloor;
⌋ &rfloor;
⟨ &lang;
⟩ &rang;
 
Geometric Shapes
char glyphHTML tag
◊ &loz;
 
Miscellaneous Symbols
char glyphHTML tag
♠ &spades;
♣ &clubs;
♥ &hearts;
♦ &diams;

 

Letterlike Symbols
char glyphHTML tag
℘ &weierp;
ℑ &image;
ℜ &real;
™ &trade;
ℵ &alefsym;
 
Greek
char glyphHTML tag
Α &Alpha;
Β &Beta;
Γ &Gamma;
Δ &Delta;
Ε &Epsilon;
Ζ &Zeta;
Η &Eta;
Θ &Theta;
Ι &Iota;
Κ &Kappa;
Λ &Lambda;
Μ &Mu;
Ν &Nu;
Ξ &Xi;
Ο &Omicron;
Π &Pi;
Ρ &Rho;
Σ &Sigma;
Τ &Tau;
Υ &Upsilon;
Φ &Phi;
Χ &Chi;
Ψ &Psi;
Ω &Omega;
α &alpha;
β &beta;
γ &gamma;
δ &delta;
ε &epsilon;
ζ &zeta;
η &eta;
θ &theta;
ι &iota;
κ &kappa;
λ &lambda;
μ &mu;
ν &nu;
ξ &xi;
ο &omicron;
π &pi;
ρ &rho;
ς &sigmaf;
σ &sigma;
τ &tau;
υ &upsilon;
φ &phi;
χ &chi;
ψ &psi;
ω &omega;
ϑ &thetasym;
ϒ &upsih;
ϖ &piv;

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