Thinkphp3.2.3 template engine will filter out the backslash. thinkphp3.2.3 slash _ PHP Tutorial

Thinkphp3.2.3 template engine filters out the backslash (thinkphp3.2.3. Thinkphp3.2.3 template engine will filter out the backslash. thinkphp3.2.3 slashes have plagued me for several hours. at first, I thought it was a JS problem, thinkphp3.2.3 template engine will filter out the backslash \, thinkphp3.2.3 slash

This problem had plagued me for several hours. at the beginning, I thought it was a JS problem. I had been troubleshooting and found that thinkphp3.2.3 filtered out the backslash \ of JS regular expressions, the JS regular expression is invalid. for example, \ d {4} is parsed to d {4}

The solution is to use two backslash \. for example, write \ d {4} as \ d {4 }.

I had to worry about the issue of callback for a few hours. At first I thought it was a JS problem and I kept investigating...