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<?php $var1= ""; $var2= ""; $var3= "3"; $temp_array = array($var1,$var2,$var3); $temp_count =count(array_filter($temp_array)); if($temp_count ==1){ echo "1 variable is not empty"; } else { echo "total variable is = ".$temp_count; }
Output for 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
1 variable is not empty

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87.23 ms | 408 KiB | 5 Q