php urlencode是否与java urlencode相同？

Question

In PHP：

php -r "echo urlencode('["IM"]'); "  

The result is %5BIM%5D

But in java

String text = URLEncoder.encode('["IM"]',"UTF-8");
System.out.println("text" + text);

The result is text%5B%22IM%22%5D

What's the different between these two functions? How can I implement a java code to complete the same function of php?

Answer 1

String text = URLEncoder.encode('[IM]',"UTF-8");
System.out.println("text" + text);

gives %5BIM%5D

echo urlencode('["IM"]');

gives %5B%22IM%22%5D

echo urlencode('[IM]');

gives %5BIM%5D

echo urlencode('[\"IM\"]');

gives %5B%5C%22IM%5C%22%5D

Answer 2

试图逃避内部qoutes

php -r "echo urlencode('[\"IM\"]'); "

Answer 3

php -r "echo urlencode('["IM"]'); "

The result is %5BIM%5D because the function urlencode is actually only taking the string [IM] as its input. while in java

String text = URLEncoder.encode('["IM"]',"UTF-8");

The string being passed is actually: ["IM"] which generates the value %22 which is encode-string for " the quote mark.