<?php $a = array(null); var_dump( empty( $a ) ); //bool(false) var_dump( (bool)$a ); //bool(false) $b = array(false); var_dump( empty( $b ) ); //bool(false) var_dump( (bool)$b ); //bool(false) $c = array(0); var_dump( empty( $c ) ); //bool(false) var_dump( (bool)$c ); //bool(false) $d = array(''); var_dump( empty( $d ) ); //bool(false) var_dump( (bool)$d ); //bool(false) $e = array(); var_dump( empty( $e ) ); //bool(true) var_dump( (bool)$e ); //bool(false)
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