<?php
/*"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)*/
$anEmptyString = "";
empty($anEmptyString);
if(empty($anEmptyString) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
$anIntegerNumber = 0;
empty($anIntegerNumber);
if(empty($anIntegerNumber) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
$aFloatNumber = 0.0;
empty($aFloatNumber);
if(empty($aFloatNumber) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
$aZeroValuedString = "0";
empty($aZeroValuedString);
if(empty($aZeroValuedString) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
$aNULL = NULL;
empty($aNULL);
if(empty($aNULL) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
$aBooleanFALSE = FALSE;
empty($aBooleanFALSE);
if(empty($aBooleanFALSE) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
$anEmptyArray = array();
empty($anEmptyArray);
if(empty($anEmptyArray) == TRUE){
echo "TRUE";
} else{
echo "FALSE";
}
echo "<hr>"; //line break
?>