PHP?? MySQL API? ??? ? ????
PHP?? MySQL API? ???? ?? ???? ????. PHP? mysql_? mysqli_?? ? ?? MySQL API ??? ?????. ??? ?? ????? ???? ???? ???? ????.
???? ??? ??? ?????.
$con = mysqli_connect("localhost", "root" ,"" ,"mysql");
if( mysqli_connect_errno( $con ) ) {
echo "failed to connect";
}else{
echo "connected";
}
mysql_close($con);
echo "Done";
? ??? ?? ??? ??????.
Connected Warning: mysql_close() expects parameter 1 to be resource, object given in D:\************.php on line 9 Done
? ??? mysql_close()? MySQL ???? ???? ????? ???? mysqli? ???? ??? ?????. resources.
???:
? ??? ????? ?? ???? ???? ??? MySQL API ??? ??????. mysqli_ ??? ???? ?? mysqli_connect() ? mysqli_close()? ???? ??? ?? ????. ?????, mysql_ ??? ???? ?? mysql_connect() ? mysql_close()? ??????.
?? ??? ??:
mysql_connect_errno() ? mysqli_connect_errno()? ?? ?????. ??? ???? ???? ? ?????. ??? ?? 0?? ??? ??? ????. ??? ??? ??? ?????.
?:
$con = mysqli_connect("localhost", "root" ,"" ,"mysql");
if( mysqli_connect_errno( $con ) ) {
echo "failed to connect: " . mysqli_connect_error();
}else{
echo "connected";
}? ??? MySQL? `mysql_` ? `mysqli_` API? PHP?? ?? ??? ? ?????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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