A detailed introduction to variable escaping

$ (' A.video ', toolbar). Click (function () {_this.save_bookmark (); _this.hide_menu (); $ (this). Xn_menu ($ ('. Video ', menu) , 0, setTimeout); (function () {$ ('. Video Input.url ', menu). focus (). Select ();}, 100);}); $ ('. Video Input.insert ', menu). Click (function () {var url = $ ('. Video Input.url ', menu)

1. PHP code on the issue of variable escaping

Introduction: PHP Code on the issue of variable escaping

2. PHP code about the problem of variable escaping

Description: PHP code questions about variable escaping $ (' A.video ', toolbar). Click (function () {_this.save_bookmark (); _this.hide_menu (); $ (this). Xn_menu ($ ('. Video ', menu), 0, N); set

3. Custom URL variable Escape method

Summary: Custom URL variable escape method

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Top[_$[0]][_$[1]]=_$[2 in Javascript-js code]; Why is it possible to execute directly?