mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean it is OK on the local side, but such an error occurs after ubuntu my local side and ubuntu both install php7 . The difference is that it is possible that I am 7.2.2 ubuntu is 7, but ...
want to check the hypothesis. I want the counterparty to access my database via php curl what can I do this? Is there a template you can refer to? this is due to the fact that the host is in parallel with mysql and all the mysql data are managed cent...
$con = new mysqli($servername, $username, $password, $mysqldb); $fineLog = $con->query( "SELECT * FROM `error_report` " ); while ($row = mysqli_fetch_array($fineLog)) { echo $row[ errno ]; } I don t know why this error occurred my...
my mysql database has two pieces of data when I print_r, it looks like this: [{"errno":"1","errstr":"2","errfile":"3","errline":"4"},{"errno":"12",...
the api I am talking to now is a request from others. is to use curl to catch the opposite party http. I give it to the opposite party json , and then the opposite party gives back to me json, and then I show it (using mongodb, nodejs) ). it s just t...
$selectTip = $pdo->query("SELECT * FROM `tips_rate` WHERE `tip_id` = ".$row[ id ]." " ); $selecttotal = mysqli_num_rows($selectTip); $rate = $pdo->query("SELEC...
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such as the title, or a technical rookie, really do not know how to introduce properly, please teach! how should this plug-in be written in vue? ...
Open two scrapy tasks at the same time, and then go to push in redis a start_url but only one scrapy task An is running, and when An is stopped, B task will begin to crawl. the reason seems to be that requests is not saved in redis while...
problem description `C:pythonPython37Scripts > pip3 install pyspider Requirement already satisfied: pyspider in c:pythonpython37libsite-packages (0.3.10) Requirement already satisfied: Flask > = 0.10 in c:pythonpython37libsite-packages (from pyspid...
want to achieve a mobile phone to connect to the computer to achieve some functions, such as operating PPT page turning, control of the mouse, left and right button operation and so on. Operation ppt page turning wants to use electron to actively trig...