Fatal error: Cannot redeclare happening on same line

I have been fighting with this error for a while. The error is somewhere in the function I now have php telling me it can't redeclare a variable on the same line... strange. Any help would be great.

Fatal error: Cannot redeclare bp_block_admin_init() (previously declared in /home/bp-member-login-redirect/bp-member-login-redirect-loader.php:31) in /home/bp-member-login-redirect/bp-member-login-redirect-lo开发者_StackOverflow中文版ader.php on line 31

lines 29-31

// make sure buddypress is installed
function bp_block_admin_init() {
    require_once( dirname( __FILE__ ) . '/bp-member-login-redirect-core.php' );
}

the lines actually calling the function (i get the error with or without these lines in the code:

if ( defined( 'BP_VERSION' ) ) {
    bp_block_admin_init();
} else {
    add_action( 'bp_init', 'bp_block_admin_init' );
}

Make sure you use require_once to ensure you're not double loading the bp-member-login-redirect-loader.php file.

require_once '/home/bp-member-login-redirect/bp-member-login-redirect-loader.php';

The problem was with the WordPress function register_activation_hook() which is called when a plugin is loaded. In my case, the file was being included without WordPress loading. Once I removed the functions I no longer got an error.

It looks like bp_block_admin_init is being defined twice. In what file does this code appear? Is another file require-ing or include-ing this file multiple times?

Most likely you're including bp-member-login-redirect-loader.php more than once. For example, the following is sufficient to reproduce your problem:

test.php

<?php
function foo() {}
?>

test2.php

<?php
include('test.php');
include('test.php'); // Double definition of foo() on test.php:2
?>

Please check it whether the function bp_block_admin_init() is already exists or not.

if(!function_exists('bp_block_admin_init'){
  function bp_block_admin_init(){
    //....
  }
}