php - Using Mysql query with where condition -

i have decoded json , want submit in database,

how can use query condition?

if(is_array($arr)){      $sql = "insert wp_posts (post_title, post_type) values ";      $valuesarr = array();     foreach($arr $row){          $email = mysql_real_escape_string( $row['property_name'] );         $post = mysql_real_escape_string( $row['post_type'] );          $valuesarr[] = "('$email', '$post')";       }      $sql .= implode(',', $valuesarr);      mysql_query($sql) or exit(mysql_error());  } 

if(is_array($arr)){ $valuesarr = array(); foreach($arr $row){ $email = mysql_real_escape_string( $row['property_name'] ); $post = mysql_real_escape_string( $row['post_type'] ); $sql = "update wp_posts set post_title='".$email."', post_type='".$post."' x=y"; mysql_query($sql) or exit(mysql_error()); } }