PHP | connection_status() Function

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The connection_status() function is an inbuilt function in PHP which returns the current connection status.

Syntax:

int connection_status( void )

Parameters: This function doesn’t accept any parameters.

Return Value: This function returns the connection status bitfield. The possible values of returned connection status bitfield are:

0:CONNECTION_NORMAL – running normally
1:CONNECTION_ABORTED – aborted by user or network error
2:CONNECTION_TIMEOUT – timed out
3:CONNECTION_ABORTED & CONNECTION_TIMEOUT – aborted and timed out

Note: This function is available for PHP 4.0.0 and newer version.

Below programs illustrate the connection_status() function in PHP.

Program 1:

<?php 
  
switch (connection_status()) { 
    case CONNECTION_ABORTED: 
        echo'Connection aborted'; 
        break; 
    case CONNECTION_TIMEOUT: 
        echo'Connection timed out'; 
        break; 
    case CONNECTION_NORMAL: 
        echo'Connection is in a normal state'; 
        break; 
  
    case (CONNECTION_ABORTED & CONNECTION_TIMEOUT): 
        echo'Connection aborted and timed out'; 
        break; 
    default: 
        echo'Unknown'; 
        break; 
} 
?> 

Output:

Connection is in a normal state

Program 2: Some output to be sent to browser for connection_status() to work in case of browser breaks or closed.

<?php 
  
// This will work even if browser breaks or closed 
// Sending this to client's browser 
switch (connection_status()) { 
    case CONNECTION_ABORTED: 
        echo'Connection aborted'; 
        break; 
    case CONNECTION_TIMEOUT: 
        echo'Connection timed out'; 
        break; 
    case CONNECTION_NORMAL: 
        echo'Connection is in a normal state'; 
        break; 
  
    case (CONNECTION_ABORTED & CONNECTION_TIMEOUT): 
        echo'Connection aborted and timed out'; 
        break; 
    default: 
        echo'Unknown'; 
        break; 
} 
?> 