英尺,英里,和英寸转换器php代码
<?php function distance($curlen,$type,$totype,$on){ //Check to see if the first value is an interger if(!is_int($curlen)){ return 'Wrong input type for first value'; exit; } //Make sure second value is either f,i, or m if($type!="f"&&$type!="i"&&$type!="m"){ return 'Wrong input type for second value'; exit; } //Make sure third value is either f,i, or m if($totype!="f"&&$totype!="i"&&$totype!="m"){ return 'Wrong input type for third value'; exit; } //Make sure fourth value is either 1 or 2 if($on!=1&&$on!=2){ return 'Wrong input type for fourth value'; exit; } //If it passes the above, get the current type switch($type){ //if it is an i do the math case "i": if($totype=="f"){ $len = $curlen / 12; if($on==1){ return number_format(round($len,1)).' FT'; }else{ return number_format(round($len,1)); } }elseif($totype=="m"){ $len = $curlen / 63360; if($on==1){ return number_format(round($len,1)).' MI'; }else{ return number_format(round($len,1)); } } break; //if it is an f do the math case "f": if($totype=="i"){ $len = $curlen * 12; if($on==1){ return number_format(round($len,1)).' IN'; }else{ return number_format(round($len,1)); } }elseif($totype=="m"){ $len = $curlen / 5280; if($on==1){ return number_format(round($len,1)).' MI'; }else{ return number_format(round($len,1)); } } break; //if it is an m do the math case "m": if($totype=="i"){ $len = $curlen * 63360; if($on==1){ return number_format(round($len,1)).' IN'; }else{ return number_format(round($len,1)); } }elseif($totype=="f"){ $len = $curlen * 5280; if($on==1){ return number_format(round($len,1)).' FT'; }else{ return number_format(round($len,1)); } } break; } } //position 1 = distance numaric numbers only no commas //position 2 = current lenght type of position 1 //position 3 = convert lenght type of position 1 and 2 //position 4 = FT,MI,IN extentions on or off :: 1=on : 2=off //m = miles //f = feet //i = inches echo distance(123,"m","f",1); ?>