mysqli::query(): Couldn’t fetch mysqli

Probably somewhere you have DBconnection->close(); and then some queries try to execute .

Hint: It’s sometimes mistake to insert ...->close(); in __destruct() (because __destruct is event, after which there will be a need for execution of queries)

Related Posts:

  1. Should I use mysqli_real_escape string() or mysql_real_escape_string() for form data?
  2. mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean given in
  3. Fatal error: Call to a member function bind_param() on boolean [duplicate]
  4. MySqli Commands out of sync; you can’t run this command now
  5. Commands out of sync; you can’t run this command now
  6. Deprecated: mysql_query() [duplicate]
  7. Having a problem getting mysqli_query to execute
  8. CodeIgniter: Unable to connect to your database server using the provided settings Error Message
  9. How to use mysqli_query() in PHP?
  10. How to log in to phpMyAdmin with WAMP, what is the username and password?
  11. Fatal error: Call to undefined function mysql_connect()
  12. PDOException SQLSTATE[HY000] [2002] No such file or directory
  13. http://localhost:80 is not working on running Apache server through UniServer ZeroXIII
  14. PDOException SQLSTATE[HY000] [2002] No such file or directory
  15. Mysql query- How to use contains?
  16. Invalid column count in CSV input on line 1 Error
  17. Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, object given in
  18. Invalid column count in CSV input on line 1 Error
  19. mysqli_real_connect(): (HY000/2002): No such file or directory
  20. Fatal error: Call to undefined function mysqli_connect()
  21. $wpdb->update or $wpdb->insert results in slashes being added in front of quotes
  22. PDO with INSERT INTO through prepared statements
  23. phpMyAdmin: secret passphrase?
  24. PDO bindParam() with prepared statement isn’t working
  25. Forbidden :You don’t have permission to access /phpmyadmin on this server
  26. mysqli_real_connect(): (HY000/2002): No such file or directory
  27. Fatal error: Call to undefined function mysqli_connect()
  28. Creating a search form in PHP to search a database?
  29. How can I do ‘insert if not exists’ in MySQL?
  30. Trying to get property of non-object in
  31. Fix Access denied for user ‘root’@’localhost’ for phpMyAdmin
  32. Getting connection failed: php_network_getaddresses: getaddrinfo failed: Name or service not known
  33. Call to undefined method mysqli_stmt::get_result
  34. Call to undefined method mysqli_stmt::get_result
  35. Lost connection to MySQL server at ‘reading initial communication packet’, system error: 0
  36. PHP with MySQL 8.0+ error: The server requested authentication method unknown to the client
  37. SQLSTATE[HY093]: Invalid parameter number: parameter was not defined
  38. How can I do ‘insert if not exists’ in MySQL?
  39. Fatal error: Cannot use object of type mysqli_result
  40. How to solve “Fatal error: Class ‘MySQLi’ not found”?
  41. mysql_field_name to the new mysqli
  42. Object of class DateTime could not be converted to string
  43. What does it mean to escape a string?
  44. Convert from MySQL datetime to another format with PHP
  45. MAMP “Apache couldn’t be started because port is in use.” AND “Can’t connect to local MySQL server through /tmp/mysql.sock
  46. mysqli_select_db() expects parameter 1 to be mysqli, string given
  47. Unexpected Exception: SQLSTATE[HY000] [1045] Access denied for user ****@’localhost’ (using password: YES)
  48. Uncaught Error: Call to undefined function mysql_escape_string()
  49. phpMyAdmin ERROR: mysqli_real_connect(): (HY000/1045): Access denied for user ‘pma’@’localhost’ (using password: NO)
  50. Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in
  51. Call to a member function on null?
  52. Warning: mysqli_query() expects at least 2 parameters, 1 given. What? [duplicate]
  53. SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens on line 102
  54. Warning: mysqli_query() expects parameter 1 to be mysqli, resource given
  55. MySQL query to get column names?
  56. What does MYSQLI_NUM mean and do?
  57. Mysql where id is in array
  58. ERROR: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it
  59. What is the advantage of using try {} catch {} versus if {} else {}
  60. select * from table where column = value ^ column2= value
  61. Object of class mysqli_result could not be converted to string
  62. No query results for model [App\Products] Laravel
  63. Fatal error: Call to a member function fetch_assoc() on a non-object
  64. Fatal error: Call to a member function query() on null
  65. mysqlworkbench giving version error on exporting database
  66. How to make DROP INDEX IF EXISTS for mysql?
  67. What is the meaning of sprintf(): Too few arguments
  68. Can I store images in MySQL 
  69. MySQL Daemon Failed to Start – centos 6
  70. Warning: mysqli_real_escape_string() expects exactly 2 parameters, 1 given… what I do wrong? 
  71. How to insert TIMESTAMP into my MySQL table?
  72. How to remove index.php from WordPress site URL
  73. PHP Like thing similar to MySQL Like, for if statement?
  74. How get value from URL
  75. Call to a member function fetch_assoc() on boolean in [duplicate]
  76. How to use Memcached with PHP7?
  77. select count(*) from table of mysql in php
  78. PHP variables don’t evaluate in the query [duplicate]
  79. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ””)’ at line 2
  80. laravel updateOrCreate method
  81. How to listen messageSent event in laravel 5.5
  82. Multi-line strings in PHP
  83. cURL error 60: SSL certificate: unable to get local issuer certificate
  84. Proper Format of iframe in PHP?
  85. How to find the last day of the month from date?
  86. php_network_getaddresses: getaddrinfo failed: Name or service not known (0) Failed To Connect..!
  87. Composer: Command Not Found
  88. Converting a UNIX Timestamp to Formatted Date String
  89. PHP Call to undefined function
  90. Formatting a number with leading zeros in PHP
  91. AJAX in WordPress, sending coords data to MySQL and show after into map
  92. Importing Geo data into wordpress database
  93. add category to posts with tag wordpress
  94. How can I Use 2 databases with one WordPress install
  95. Why won’t this wpdb get_results query return results?
  96. AWS Lightsail WordPress – connect to database on instance using mysqli
  97. Using wpdb to connect to a different database is not working
  98. Prepared DB Query from _POST array
  99. how to check for wordpress Query errors
  100. running an existing WordPress site from Visual Studio Code?

Leave a Comment