How does php splice binary data into strings?

How does php splice binary data into strings? Binary php UTF-8 encoding

For example, the utf8 encoding of the character "you" is "E4BDA0 ".
There is an array $ arr

$arr = array(chr(228), chr(189), chr(160));

How can we splice it into one piece so that it can print the character "you "?
Help

Reply to discussion (solution)

$ Arr = array (chr (228), chr (189), chr (160); echo join ('', $ arr ); // You foreach ($ arr as $ v) echo $ v; for ($ I = 0; $ I
   
  
  
  
  
  
echo pack('H*', 'E4BDA0');echo hex2bin('E4BDA0');
 
  
 
  
  
  
$ Arr = array (chr (228), chr (189), chr (160); echo join ('', $ arr ); // You foreach ($ arr as $ v) echo $ v; for ($ I = 0; $ I
     
    
  
    
  
    
echo pack('H*', 'E4BDA0');echo hex2bin('E4BDA0');
  
    
Thank you ~ The following two are feasible ~
    
The strange thing is that I printed three characters in join yesterday ~ Today, join is available ~
    
I don't know how the join performance works ~
    
 
    
Join is faster than loop in the code.
 
    
Join is faster than loop in the code.
Before I improved a template engine, I sent two posts asking the regular expression to match tags ~ Unsuccessful
Helpless, I decided to write a syntax analyzer by myself ~ Unfortunately, PHP does not support high-performance items such as pointer and memory copy. I don't know how much performance will be lost when using this method ~
 
    
You cannot be afraid of it because you are "worried ".
Performance is compared. you have to do more.
Only comparisons can be used for identification!
  
Php is interpreted and executed, and each command takes a little time.
There are also many cycles, and the more time. Recursion is also a loop
Recognition Mode. string function loops are better than regular expressions.
You can use the iterator instead of loop by yourself.
......
 
    
You cannot be afraid of it because you are "worried ".
Performance is compared. you have to do more.
Only comparisons can be used for identification!
  
Php is interpreted and executed, and each command takes a little time.
There are also many cycles, and the more time. Recursion is also a loop
Recognition Mode. string function loops are better than regular expressions.
You can use the iterator instead of loop by yourself.
......
Thank you ~ Thank you very much ~