<?php function test( $limited_email_domains ) { $limited_email_domains = str_replace( ' ', "\n", $limited_email_domains ); var_dump( gettype( $limited_email_domains ) ); } test( 0 ); test( false ); test( '' ); test( array( 'foo', 'bar', 'baz' ) ); // This one will throw a fatal error as str_replace's third param must be string or array. test( (object) array( 'foo', 'bar', 'baz' ) );
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