pole prázdne check v php
if (empty($array)) {
// list is empty.
}
skontrolujte, či je pole prázdne php
// Declare an array and initialize it
$non_empty_array = array('apples' => '2');
// Declare an empty array
$empty_array = array();
// Condition to check array is empty or not
if(!empty($non_empty_array)) {
echo "Given Array is not empty <br>";
}
if(empty($empty_array)) {
echo "Given Array is empty";
}
deklarovať prázdne pole v php
$emptyArray = [];
$emptyArray = array();
$emptyArray = (array) null;
odstrániť prázdne prvky poľa php
$colors = array("red","","blue",NULL);
$colorsNoEmptyOrNull = array_filter($colors, function($v){
return !is_null($v) && $v !== '';
});
//$colorsNoEmptyOrNull is now ["red","blue"]
pole by nemalo byť prázdne php
$arr = array();
if(!empty($arr)){
echo "not empty";
}
else
{
echo "empty";
}
php prázdne pole
//To clear array you are able to simply re-instantiate it
$foo = array();
//To clear $foo from the symbol table use
unset($foo);