php foreach vs array_filter
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	dcausse
	Dec 6 2017, 2:03 PM

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php foreach vs array_filter
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	$namespaces = array_filter( $namespaces, function ( $k, $v ) {
	wfDebug( "via array_filter: " . gettype( $v ) . " : " . gettype( NS_MAIN ) );
	return true; // $v !== NS_MAIN;
	}, ARRAY_FILTER_USE_BOTH );
	wfDebug( "VIA reset: " . gettype( reset( $namespaces ) ) );
	wfDebug( "DUMP:" . print_r( $namespaces, true ) );
	foreach ( $namespaces as $k => $v ) {
	wfDebug( "$k => $v \| " . NS_MAIN );
	wfDebug( "via foreach:" . gettype( $v ) . " : " . gettype( NS_MAIN ) );
	if ( $v === NS_MAIN ) {
	wfDebug( "UNSET" . print_r($namespaces, true) );
	unset( $namespaces[$k] );
	}
	}
	wfDebug( print_r($namespaces, true) );

	will output:
	2017-12-06 13:59:20 cirrustestwiki wfDebug DEBUG: via array_filter: integer : integer
	2017-12-06 13:59:20 cirrustestwiki wfDebug DEBUG: VIA reset: string
	2017-12-06 13:59:20 cirrustestwiki wfDebug DEBUG: DUMP:Array
	(
	[0] => 0
	)
	2017-12-06 13:59:20 cirrustestwiki wfDebug DEBUG: 0 => 0 \| 0
	2017-12-06 13:59:20 cirrustestwiki wfDebug DEBUG: via foreach:string : integer
	2017-12-06 13:59:20 cirrustestwiki wfDebug DEBUG: Array
	(
	[0] => 0
	)