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$oldArr = array(
array(
    0 => 'A0060750',
    1 => 9787560618852),
array(
    0 => '',
    1 => 9787560618855),
array(
    0 => '',
    1 => 9787560618856),
array(
    0 => 'A00607507',
    1 => 9787560618857),
array(
    0 => '',
    1 => 9787560618858)
);

轉(zhuǎn)化為

$newArr = array(
array(
    0 => 'A0060750',
    1 => 9787560618852),
array(
    0 => 'A0060750',
    1 => 9787560618855),
array(
    0 => 'A0060750',
    1 => 9787560618856),
array(
    0 => 'A00607507',
    1 => 9787560618857),
array(
    0 => 'A00607507',
    1 => 9787560618858)
);

簡單說就是，如果二維數(shù)組中的，$oldArr[i][0] 的值為空，就以上一個不為空的值填充。