검색어: i will come (중국어(간체자) - 영어)

i will never give up
make yourself proud

?php $var = ''; // this will evaluate to true; so the text will be printed. if (isset($var)) {print "this var is set set so i will print.";} // in the next examples we'll use var_dump to output // the return value of isset(). $a = "test"; $b = "anothertest"; var_dump( isset($a)); // true var_dump( isset ($a, $b)); // true unset ($a); var_dump( isset ($a)); // false var_dump( isset ($a, $b)); // false $foo = null; var_dump( isset ($foo)); // false?
?php $var = ''; / / this will evaluate to true; so the text will be printed. if (isset($var)) {print "this var is set set so i will print .";} / / in the next examples we'll use var_dump to output / / the return value of isset(). $a = "test"; $b = "anothertest"; var_dump (isset($a)); / / true var_dump (isset ($a, $b)); / / true unset ($a); var_dump (isset ($a)); / / false var_dump (isset ($a, $b)); / / false $foo = null; var_dump (isset ($foo)); / / false?