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I have a field name contentdata with a hex data of AA560D72DA4AB20AAA using a type char.
In MySQL, I can run this command:
SELECT SUBSTR(hex(contentdata),15,2) FROM table1
the output is:
0A
How can I code "SELECT SUBSTR(hex(contentdata),15,2) FROM table1" in PHP so I can bring the same result.
MySQL create php code gave me this recommendation but I can't show the value.
$sql = "SELECT SUBSTR(hex(payload),15,2) FROM device_status LIMIT"
Let me know what I'm missing here?
Thanks in advance.
Em
---------- Post added at 11:14 AM ---------- Previous post was at 09:58 AM ----------
I've got the solution, add "AS hex_value" courtesy by Katherine.
In MySQL, I can run this command:
SELECT SUBSTR(hex(contentdata),15,2) FROM table1
the output is:
0A
How can I code "SELECT SUBSTR(hex(contentdata),15,2) FROM table1" in PHP so I can bring the same result.
MySQL create php code gave me this recommendation but I can't show the value.
$sql = "SELECT SUBSTR(hex(payload),15,2) FROM device_status LIMIT"
Let me know what I'm missing here?
Thanks in advance.
Em
---------- Post added at 11:14 AM ---------- Previous post was at 09:58 AM ----------
I've got the solution, add "AS hex_value" courtesy by Katherine.
Last edited:
