thinkphp-变量调试dump

dump方法，用于输出变量的信息到浏览器查看

dump($var, $echo=true, $label=null)

dump($memberList,$echo=true,$label=null);

array (size=4)
0 =>
array (size=3)
'id' => int 0
'name' => string 'thinkphp' (length=8)
'score' => int 1
1 =>
array (size=3)
'id' => int 4
'name' => string 'zhangsan4' (length=9)
'score' => int 0
2 =>
array (size=3)
'id' => int 5
'name' => string 'zhangsan5' (length=9)
'score' => int 0
3 =>
array (size=3)
'id' => int 6
'name' => string 'zhangsan6' (length=9)
'score' => int 0

echo参数为false 则返回要输出的字符串

$str = dump($memberList,$echo=false,$label=null);
print_r($str);

array (size=4)
0 =>
array (size=3)
'id' => int 0
'name' => string 'thinkphp' (length=8)
'score' => int 1
1 =>
array (size=3)
'id' => int 4
'name' => string 'zhangsan4' (length=9)
'score' => int 0
2 =>
array (size=3)
'id' => int 5
'name' => string 'zhangsan5' (length=9)
'score' => int 0
3 =>
array (size=3)
'id' => int 6
'name' => string 'zhangsan6' (length=9)
'score' => int 0