我需要获得最接近数字的最低和最高值。
<?php
$a = array(1, 8, 23,42,47, 52, 55, 66, 74,75, 76,77,78, 95,);
sort($a);
$v = 58;
$lesser = null;
$greater = null;
foreach($a as $key => $current){
if($current <= $v){
$lesser = $current;
$greater = $a[($key+1)];
}else{
}
}
print_r(array(
"lesser" => $lesser,
"greater" => $greater,
));
?>
/** output :
Array
(
lesser => 55
greater => 66
)
**/
我的目标是让所有的数字都大于给定的数字，与较小的相同：
greater => 66, 74, 75, 77, 78, 95
lesser => 55, 52, 47, 42, 23, 8, 1
我该如何解决这个问题？
制造$lesser和$greater您推送的数组，而不是替换。
<?php
$a = array(1, 8, 23,42,47, 52, 55, 66, 74,75, 76,77,78, 95,);
$v = 58;
$lesser = [];
$greater = [];
foreach($a as $key => $current){
if ($current < $v) {
$lesser[] = $current;
} elseif ($current > $v) {
$greater[] = $current;
}
}
print_r(array(
"lesser" => $lesser,
"greater" => $greater,
));
?>
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