為什么 $string = 9494; 這個(gè)字符型不需要用""括上9494
<?php?
?$string = "就是就是";
?var_dump($string);
?echo "<br />";
?$string = "9494";
?var_dump($string);
? echo "<br />";
?>
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<?php?
?$string = "就是就是";
?var_dump($string);
?echo "<br />";
?$string = "9494";
?var_dump($string);
? echo "<br />";
?>
2017-01-16
舉報(bào)
2017-01-16
9494輸出是整型，加上雙引號(hào)輸出是字符串