829 B
		
	
	
	
	
	
	
	
			
		
		
	
	
			829 B
		
	
	
	
	
	
	
	
title, localeTitle
| title | localeTitle | 
|---|---|
| Functions | 功能 | 
PHP函数简介
函数是可以在程序中重复使用的语句块。
简单的功能+通话
function say_hello() { 
  return "Hello!"; 
 } 
 
 echo say_hello(); 
简单功能+参数+调用
function say_hello($friend) { 
  return "Hello " . $friend . "!"; 
 } 
 
 echo say_hello('Tommy'); 
strtoupper - 让所有的Chars变得更大和更大!
function makeItBIG($a_lot_of_names) { 
  foreach($a_lot_of_names as $the_simpsons) { 
    $BIG[] = strtoupper($the_simpsons); 
  } 
  return $BIG; 
 } 
 
 $a_lot_of_names = ['Homer', 'Marge', 'Bart', 'Maggy', 'Lisa']; 
 var_dump(makeItBIG($a_lot_of_names));