how to check mysql id row number with php? -

how to check mysql id row number with php? -

how check mysql id row number php? code not works

$id = '$url_id'; $con=mysqli_connect("dbhost","dbuser","dbpass","dbname"); $sqlcheckrow = mysql_query( "select * gagzavnili id=".$url_id." " ) or die ( mysql_error() ); $rowcounted = mysql_num_rows( $sqlcheckrow ); if ( $rowcounted == '50' ) @header("location:error8.php");

try execute next sql statement, should trick:

$sqlcheckrow = mysql_query("select * gagzavnili id=$url_id" ) or die (mysql_error() );

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