天涯浪人 书童

How do I check if a URL exists (not 404) in PHP?

Currently I am trying to deal with a strange Exception when opening a BluetoothSocket on my Nexus 7 ...

I am once again asking the community. I spend hours on this already. I did endless google searches a...

Can two applications on the same machine bind to the same port and IP address? Taking it a step furt...

I\'m trying to write a simple RTD client to start with something, but I seem not able to make the in...

I am using react-js popup library for multiple card popups.And the position props in the popup libra...

so i have 2 regions in my page and 1 report + 1 button in each region, the buttons allow you to add ...

I have to find all the opening HTML tags (by regular expression) How do I do that? I tried the follo...

I\'ve been wrestling with this for a while and can\'t quite figure out what\'s happening. I have a ...

My password strength criteria is as below : 8 characters length 2 letters in Upper Case 1 Special...

First of all, I got the Runtime error that memory exceeds and reaches its maximum bonds. Afterward, ...

cd is the shell command to change the working directory. How do I change the current working direct...

How can I clone multidimensional array please? I used a clone function in a following source code bu...