mysqli - My insert doesn't work but i don't get any errors -

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my mysqli insert doesn't work reason don't errors.

<?php  $con=mysqli_connect("localhost","root","","dice"); if (mysqli_connect_errno())   {   echo "failed connect mysql: " . mysqli_connect_error();   }  mysqli_query($con,"insert `gamble` (thr,score,tstamp) values ('test123','test123','test123')"); echo "new record has id: " . mysqli_insert_id($con);  mysqli_close($con);   ?>

i don't know did wrong. thank in advance.


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