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connect-errno

mysqli::$connect_errno

mysqli_connect_errno

Returns the error code from last connect call

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int

mysqli->connect_errno

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int

mysqli_connect_errno

Returns the error code from the last connection attempt.

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An error code for the last connection attempt, if it failed. Zero means no error occurred.

Returns the last connection error code regardless of the instance on which it is called.

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$mysqli->connect_errno example

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<?php

mysqli_report(MYSQLI_REPORT_OFF);
/* @ is used to suppress warnings */
$mysqli = @new mysqli('localhost', 'fake_user', 'wrong_password', 'does_not_exist');
if ($mysqli->connect_errno) {
    /* Use your preferred error logging method here */
    error_log('Connection error: ' . $mysqli->connect_errno);
}

   

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<?php

mysqli_report(MYSQLI_REPORT_OFF);
/* @ is used to suppress warnings */
$link = @mysqli_connect('localhost', 'fake_user', 'wrong_password', 'does_not_exist');
if (!$link) {
    /* Use your preferred error logging method here */
    error_log('Connection error: ' . mysqli_connect_errno());
}

   

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mysqli_connect, mysqli_connect_error, mysqli_errno, mysqli_error, mysqli_sqlstate