[英]Find matches in multidimensional array
我有一個數組,其中包含不同格式的電話號碼:
$myArr[0][0] == '122-33-2222';
$myArr[1][0] == '(122) 433-5555';
$myArr[2][0] == '122 644.8888';
我需要檢查另一個數字是否在該數組中。 我假設我需要遍歷數組並在比較之前剝離所有非數字值。
$findNumber = 122.433.5555;
$varPhone = preg_replace("/[^0-9,.]/", "", $findNumber);
foreach ($myArr AS $phone) {
if (preg_replace("/[^0-9,.]/", "", $phone) == $varPhone) {
echo "found";
} else {
echo "not found";
}
}
我想我已經接近了,但還不在那里。 我想念什么?
您的代碼存在一些問題,請嘗試以下操作:
$myArr[0][0] = '122-33-2222';
$myArr[1][0] = '(122) 433-5555';
$myArr[2][0] = '122 644.8888';
$findNumber = "122.433.5555";
$varPhone = preg_replace("/[^0-9]/", "", $findNumber);
foreach ($myArr AS $phone)
{
$phone = preg_replace("/[^0-9]/", "", $phone);
if ($phone[0] == $varPhone)
{
echo "found";
}
else
{
echo "not found";
}
}
取出,
和.
從正則表達式開始,由於$phone
是一個數組,因此應將其視為。
輸出:
not foundfoundnot found
電話號碼位於每個第一級數組元素的鍵[0]
中,因此您不能直接比較$phone
每個實例。 另外,我將替換所有非數字字符,以便不同的符號仍顯示為相同的數字。
<?php
// initialize array for the sake of this demo, to make this snippet work
$myArr = array(array(), array(), array());
$myArr[0][0] = '122-33-2222';
$myArr[1][0] = '(122) 433-5555';
$myArr[2][0] = '122 644.8888';
$findNumber = "122.433.5555";
function cleanNumber($in) {
return preg_replace("/[^0-9]/", "", $in);
}
foreach ($myArr AS $phone) {
// the number is in the key [0] for each first-level array element
if (cleanNumber($phone[0]) == cleanNumber($findNumber)) {
echo "found<br>";
} else {
echo "not found<br>";
}
}
這將輸出:
not found
found
not found
請檢查以下可能有效的代碼段
<?php
$myArr[0] = '122-33-2222';
$myArr[1] = '(122) 433-5555';
$myArr[2] = '122 644.8888';
$findNumber = "122.433.5555";
$varPhone = preg_replace("/[^0-9]/", "", $findNumber);
$flag = false;
foreach ($myArr AS $phone) {
if (preg_replace("/[^0-9]/", "", $phone) == $varPhone) {
$flag = true;
break;
}
}
if($flag)
echo "found";
else
echo "not found";
?>
更改:-$ myArr應該是1d數組,而不是2d數組,
==是比較運算符,應改用賦值運算符。
在preg_replace中,即使點也應替換為空
這是您的代碼的工作示例:
$myArr[0][0] = '122-33-2222';
$myArr[1][0] = '(122) 433-5555';
$myArr[2][0] = '122 644.8888';
$findNumber = '122.433.5555';
$normalize = preg_replace("/[^0-9]/","", $findNumber);
$found = false;
foreach ($myArr AS $phone) {
if ($normalize == preg_replace("/[^0-9]/","", $phone[0])) {
$found = true;
break;
}
}
echo $found;
更好的方法是使用array_filter
$myArr[0][0] = '122-33-2222';
$myArr[1][0] = '(122) 433-5555';
$myArr[2][0] = '122 644.8888';
$findNumber = '122.433.5555';
$normalize = preg_replace("/[^0-9]/","", $findNumber);
$filtered =array_filter($myArr, function ($phone) use ($normalize) {
return preg_replace("/[^0-9]/","", $phone[0]) == $normalize;
});
var_dump($filtered);
echo sizeof($filtered);
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