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Homephp教程php手册和PHP的date函数用法一样的JS时间戳格式化函数


/**<br>  * 和PHP一样的时间戳格式化函数<br>  * @param  {string} format    格式<br>  * @param  {int}    timestamp 要格式化的时间 默认为当前时间<br>  * @return {string}           格式化的时间字符串<br>  */<br> function date(format, timestamp){ <br>     var a, jsdate=((timestamp) ? new Date(timestamp*1000) : new Date());<br>     var pad = function(n, c){<br>         if((n = n + "").length              return new Array(++c - n.length).join("0") + n;<br>         } else {<br>             return n;<br>         }<br>     };<br>     var txt_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];<br>     var txt_ordin = {1:"st", 2:"nd", 3:"rd", 21:"st", 22:"nd", 23:"rd", 31:"st"};<br>     var txt_months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; <br>     var f = {<br>         // Day<br>         d: function(){return pad(f.j(), 2)},<br>         D: function(){return f.l().substr(0,3)},<br>         j: function(){return jsdate.getDate()},<br>         l: function(){return txt_weekdays[f.w()]},<br>         N: function(){return f.w() + 1},<br>         S: function(){return txt_ordin[f.j()] ? txt_ordin[f.j()] : 'th'},<br>         w: function(){return jsdate.getDay()},<br>         z: function(){return (jsdate - new Date(jsdate.getFullYear() + "/1/1")) / 864e5 >> 0},<br> <br>         // Week<br>         W: function(){<br>             var a = f.z(), b = 364 + f.L() - a;<br>             var nd2, nd = (new Date(jsdate.getFullYear() + "/1/1").getDay() || 7) - 1;<br>             if(b                  return 1;<br>             } else{<br>                 if(a = 4 && a >= (6 - nd)){<br>                     nd2 = new Date(jsdate.getFullYear() - 1 + "/12/31");<br>                     return date("W", Math.round(nd2.getTime()/1000));<br>                 } else{<br>                     return (1 + (nd > 0);<br>                 }<br>             }<br>         },<br> <br>         // Month<br>         F: function(){return txt_months[f.n()]},<br>         m: function(){return pad(f.n(), 2)},<br>         M: function(){return f.F().substr(0,3)},<br>         n: function(){return jsdate.getMonth() + 1},<br>         t: function(){<br>             var n;<br>             if( (n = jsdate.getMonth() + 1) == 2 ){<br>                 return 28 + f.L();<br>             } else{<br>                 if( n & 1 && n  7 ){<br>                     return 31;<br>                 } else{<br>                     return 30;<br>                 }<br>             }<br>         },<br> <br>         // Year<br>         L: function(){var y = f.Y();return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0},<br>         //o not supported yet<br>         Y: function(){return jsdate.getFullYear()},<br>         y: function(){return (jsdate.getFullYear() + "").slice(2)},<br> <br>         // Time<br>         a: function(){return jsdate.getHours() > 11 ? "pm" : "am"},<br>         A: function(){return f.a().toUpperCase()},<br>         B: function(){<br>             // peter paul koch:<br>             var off = (jsdate.getTimezoneOffset() + 60)*60;<br>             var theSeconds = (jsdate.getHours() * 3600) + (jsdate.getMinutes() * 60) + jsdate.getSeconds() + off;<br>             var beat = Math.floor(theSeconds/86.4);<br>             if (beat > 1000) beat -= 1000;<br>             if (beat              if ((String(beat)).length == 1) beat = "00"+beat;<br>             if ((String(beat)).length == 2) beat = "0"+beat;<br>             return beat;<br>         },<br>         g: function(){return jsdate.getHours() % 12 || 12},<br>         G: function(){return jsdate.getHours()},<br>         h: function(){return pad(f.g(), 2)},<br>         H: function(){return pad(jsdate.getHours(), 2)},<br>         i: function(){return pad(jsdate.getMinutes(), 2)},<br>         s: function(){return pad(jsdate.getSeconds(), 2)},<br>         //u not supported yet<br> <br>         // Timezone<br>         //e not supported yet<br>         //I not supported yet<br>         O: function(){<br>             var t = pad(Math.abs(jsdate.getTimezoneOffset()/60*100), 4);<br>             if (jsdate.getTimezoneOffset() > 0) t = "-" + t; else t = "+" + t;<br>             return t;<br>         },<br>         P: function(){var O = f.O();return (O.substr(0, 3) + ":" + O.substr(3, 2))},<br>         //T not supported yet<br>         //Z not supported yet<br> <br>         // Full Date/Time<br>         c: function(){return f.Y() + "-" + f.m() + "-" + f.d() + "T" + f.h() + ":" + f.i() + ":" + f.s() + f.P()},<br>         //r not supported yet<br>         U: function(){return Math.round(jsdate.getTime()/1000)}<br>     };<br> <br>     return format.replace(/[\\]?([a-zA-Z])/g, function(t, s){<br>         if( t!=s ){<br>             // escaped<br>             ret = s;<br>         } else if( f[s] ){<br>             // a date function exists<br>             ret = f[s]();<br>         } else{<br>             // nothing special<br>             ret = s;<br>         }<br>         return ret;<br>     });<br> }

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