来自：http://www.verydemo.com/demo_c116_i52555.html
class Mobi {
??? function __isMobile() {
??? ??? $useragent=$_SERVER['HTTP_USER_AGENT'];
??? ??? if(preg_match('/android|avantgo|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)//|plucker|pocket|psp|symbian|treo|up/.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i',$useragent)||preg_match('/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s/-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|/-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw/-(n|u)|c55//|capi|ccwa|cdm/-|cell|chtm|cldc|cmd/-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc/-s|devi|dica|dmob|do(c|p)o|ds(12|/-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(/-|_)|g1 u|g560|gene|gf/-5|g/-mo|go(/.w|od)|gr(ad|un)|haie|hcit|hd/-(m|p|t)|hei/-|hi(pt|ta)|hp( i|ip)|hs/-c|ht(c(/-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i/-(20|go|ma)|i230|iac( |/-|//)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |//)|klon|kpt |kwc/-|kyo(c|k)|le(no|xi)|lg( g|//(k|l|u)|50|54|e/-|e//|/-[a-w])|libw|lynx|m1/-w|m3ga|m50//|ma(te|ui|xo)|mc(01|21|ca)|m/-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(/-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)/-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|/-([1-8]|c))|phil|pire|pl(ay|uc)|pn/-2|po(ck|rt|se)|prox|psio|pt/-g|qa/-a|qc(07|12|21|32|60|/-[2-7]|i/-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55//|sa(ge|ma|mm|ms|ny|va)|sc(01|h/-|oo|p/-)|sdk//|se(c(/-|0|1)|47|mc|nd|ri)|sgh/-|shar|sie(/-|m)|sk/-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h/-|v/-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl/-|tdg/-|tel(i|m)|tim/-|t/-mo|to(pl|sh)|ts(70|m/-|m3|m5)|tx/-9|up(/.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|/-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(/-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|xda(/-|2|g)|yas/-|your|zeto|zte/-/i',substr($useragent,0,4))) {
??? ??? ??? //header('Location: http://m.yourdomain.com/');
??? ??? ??? return true;
??? ??? }
??? ??? return false;
??? }
}
?>