- filter_var: documentation ( source)
- print_r: documentation ( source)
- explode: documentation ( source)
- in_array: documentation ( source)
<?php
$array = array("Painted concrete Walls.1", "Concrete steps with steel rainings.0", "Steel emergency staircase.0");
$tempArray = array();
$newArray = array();
foreach($array as $value) {
$item = explode(".", $value);
$int = filter_var($item[0], FILTER_SANITIZE_NUMBER_INT);
if(!in_array($int, $tempArray)) {
$newArray[] = $value;
$tempArray[] = $int;
}
}
print_r($newArray);
?>