document.write( var_dump ( "変数名" ) ) ;
function var_dump(data,addwhitespace,safety,level) {
var rtrn = '';
var dt,it,spaces = '';
if(!level) {level = 1;}
for(var i=0; i<level; i++) {
spaces += ' ';
}//end for i<level
if(typeof(data) != 'object') {
dt = data;
if(typeof(data) == 'string') {
if(addwhitespace == 'html') {
dt = dt.replace(/&/g,'&');
dt = dt.replace(/>/g,'>');
dt = dt.replace(/</g,'<');
}//end if addwhitespace == html
dt = dt.replace(/\"/g,'\"');
dt = '"' + dt + '"';
}//end if typeof == string
if(typeof(data) == 'function' && addwhitespace) {
dt = new String(dt).replace(/\n/g,"\n"+spaces);
if(addwhitespace == 'html') {
dt = dt.replace(/&/g,'&');
dt = dt.replace(/>/g,'>');
dt = dt.replace(/</g,'<');
}//end if addwhitespace == html
}//end if typeof == function
if(typeof(data) == 'undefined') {
dt = 'undefined';
}//end if typeof == undefined
if(addwhitespace == 'html') {
if(typeof(dt) != 'string') {
dt = new String(dt);
}//end typeof != string
dt = dt.replace(/ /g," ").replace(/\n/g,"<br>");
}//end if addwhitespace == html
return dt;
}//end if typeof != object && != array
for (var x in data) {
if(safety && (level > safety)) {
dt = '*RECURSION*';
} else {
try {
dt = var_dump(data[x],addwhitespace,safety,level+1);
} catch (e) {continue;}
}//end if-else level > safety
it = var_dump(x,addwhitespace,safety,level+1);
rtrn += it + ':' + dt + ',';
if(addwhitespace) {
rtrn += '\n'+spaces;
}//end if addwhitespace
}//end for...in
if(addwhitespace) {
rtrn = '{\n' + spaces + rtrn.substr(0,rtrn.length-(2+(level*3))) + '\n' + spaces.substr(0,spaces.length-3) + '}';
} else {
rtrn = '{' + rtrn.substr(0,rtrn.length-1) + '}';
}//end if-else addwhitespace
if(addwhitespace == 'html') {
rtrn = rtrn.replace(/ /g," ").replace(/\n/g,"<br>");
}//end if addwhitespace == html
return rtrn;
}//end function var_dumpソース：http://snippets.dzone.com/posts/show/4296
