Preface: Last time, we simply increase or decrease in operating some change search operation, this time, come to be a wonderful trip
First, to explain the case
At (1), and the value field has no single data value
The first title this data field (mysql with a long time, used to be so called) is no data, the last piece of data, is there, before I explain by operating mysql, even if there is no value, taking data out, if you do not limit field names will come out of a null
Data speak:
(Last) F: \ wamp64 \ www \ xxxxx \ application \ index \ controller \ Test.php: 48:
array (size=5) 'name' => string '15698293845d91b208011150.92650917' (length=33)
'age' => int 0
'title' => string 'What time is 15:43:04 2019-09-30' (length = 34 is)
'time' => int 1569829384
'id' => string '5d91b208a374a412e8000755' (length=24)
(Article) F: \ wamp64 \ www \ xxxxx \ application \ index \ controller \ Test.php: 48:
array (size=4) 'name' => string '15698266425d91a7521c35a4.86084823' (length=33)
'age' => int 2
'time' => int 1569826642
'id' => string '5d91a752a374a412e800074c' (length=24)
But see the above two data taken out, It's a bit ..................................... .....................................
Query all the time, too
Array (
[0] => Array (
[name] => 15698266425d91a7521c35a4.86084823
[age] => 2
[time] => 1569826642
[id] => 5d91a752a374a412e800074c
)
[1] => Array (
[name] => 15698266435d91a7530c98f3.33312434
[age] => 1
[time] => 1569826643
[id] => 5d91a753a374a412e800074d
) ...............
[9] => Array (
[name] => 15698293845d91b208011150.92650917
[age] => 0
[Title] => What time is it 2019-09-30 15:43:04
[time] => 1569829384
[id] => 5d91b208a374a412e8000755
)
)
Means that, in the fight to sql time, and finally take on the stitching data, and that does not support complex business, if you just do a data field will not change the basic operations, such as (log management, etc.) recommended use elasticsearch, an efficient search server.