Question

这些是我得到的错误

（！）注意：未定义的偏移量：第35行的C：\ wamp64 \ www \ searches.php中的1   调用堆栈

（！）注意：未定义的偏移量：第35行的C：\ wamp64 \ www \ searches.php中的2

（！）注意：未定义的偏移量：第42行的C：\ wamp64 \ www \ searches.php中的2

第35行是$totalSum = $totalSum + $amYearNumbers[1][$x];

这是整个for循环的一部分

preg_match_all('/(\d)\s<span>year/', $amItemYEAR, $amYearNumbers);
print_r($amYearNumbers);
if ($amYearNumbers) {
    $amYearNumbersLength = count($amYearNumbers);
    $totalSum = 0;
    for ($x = 0; $x <= $amYearNumbersLength ; $x++) {
        $totalSum = $totalSum + $amYearNumbers[1][$x];
    }
}

print_r($amYearNumbers);返回

数组（[0] =＆gt;数组（[0] =＆gt; 8年）[1] =＆gt;数组（[0] =＆gt; 8））

我确定错误的确切含义，我只想将所有返回的数字相加

Answer 1

检查一下，

if (count($amYearNumbers)) {
    $amYearNumbersLength = count($amYearNumbers[0]);
    $totalSum = 0;
    for ($x = 0; $x < $amYearNumbersLength ; $x++) {
        $totalSum = $totalSum + $amYearNumbers[0][$x];
    }
}

Answer 2

if ($amYearNumbers) {
    $amYearNumbersLength = count($amYearNumbers);
    $totalSum = 0;
    for ($x = 0; $x < $amYearNumbersLength ; $x++) {
        $totalSum += $amYearNumbers[$x][0];
    }
}

Answer 3

你的计数和循环数不一样。

GenerateEndEntityCertificate

在PHP For循环中获取未定义的偏移量

3 个答案: