echo() examples <?php echo "Hello World"; echo "This spans multiple lines. The newlines will be output as well"; echo "This spans\nmultiple lines. The newlines will be\noutput as well."; echo "Escaping characters is done \"Like this\"."; // You can use variables inside of an ...
Yeah, I know my code isveryold with no separation of concerns (most of it written before PHPStorm was even invented), but it works, and I can't immediately refactor it all, so bear with me. Much of the HTML markup is output with PHP echo ...
$x="John";echo$x; Try it Yourself » String variables can be declared either by using double or single quotes, but you should be aware of the differences. Learn more about the differences in thePHP Strings chapter. Assign Multiple Values ...
echo"What a nice day!"; ?> Try it Yourself » Example Join two string variables together: <?php $str1="Hello world!"; $str2="What a nice day!"; echo$str1 ." ". $str2; ?> Try it Yourself » Example Write the value of an array to the output: <?php...
echo $shx->get("key_name_apple"); // get example key value.$shx->del("key_name_apple"); // delete keyunset($shx); // free memory in php..class shmSmart{ public $shm; //holds shared memory resource public function __construct(){ if(function_exists("shm_attach")===FALSE){ ...
echo and print are more or less the same. They are both used to output data to the screen. The differences are small: echo has no return value while print has a return value of 1 so it can be used in expressions. echo can take multiple parameters (although such usage is rare) while...
3. Use echo’s multiple parameters instead of string concatenation. 使用echo的多重参数(译注:指用逗号而不是句点)代替字符串连接。 4. Set the maxvalue for your for-loops before and not in the loop. 在执行for循环之前确定最大循环数,不要每循环一次都计算最大值。
echo - Echo the given string connect, open Description: Connects to a Redis instance. Parameters host: string. can be a host, or the path to a unix domain socket. Starting from version 5.0.0 it is possible to specify schema port: int, optional timeout: float, value in seconds (optional...
echo"i equals 2"; break; } ?> 示例#2switch结构可以用string <?php switch ($i) { case"apple": echo"i is apple"; break; case"bar": echo"i is bar"; break; case"cake": echo"i is cake"; break; } ?> 为避免错误,理解switch是怎样执行的非常重要。switch语句一行接一行地执行(实际上是...
echo "a: $a, b: $b, c: $c"; This will output this: a: A, b: A, c: A As you can see all three variables now contain "A" which is what $a was set to initially. Concatenating multiple variables This second example isn’t very ideal as it can be confusing so I wouldn’t...