Online PHP editor | refs for aIWqA

<?php $tests=[1=>1,'string 0'=>'0','null'=>null,'false'=>false,'integer 0'=>0,'foo'=>'foo']; foreach($tests as $name=>$test){ if( isset($test) && ($test != "") ){ var_export("$name: pass != \"\""); }else{ var_export("$name: fail != \"\""); } echo "\n"; if( isset($test) && ($test !== '') ){ var_export("$name: pass !== \"\""); }else{ var_export("$name: fail !== \"\""); } echo "\n"; if(!empty($test) ){ var_export("$name: pass !empty"); }else{ var_export("$name: fail !empty"); } echo "\n\n"; }