首頁猿問兩個二維數(shù)組的合并

兩個二維數(shù)組的合并

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達令說 2019-04-19 16:29:17

合并前的數(shù)組a：array(size=3)0=>array(size=2)'id'=>string'113'(length=3)'email'=>string'yintx_1292342352@163.com'(length=24)1=>array(size=2)'id'=>string'111'(length=3)'email'=>string'yintx_1293456456@163.com'(length=24)2=>array(size=2)'id'=>string'109'(length=3)'email'=>string'yintx_129@99999.com'(length=19)合并前的數(shù)組b：array(size=2)0=>array(size=2)'user_id'=>string'113'(length=2)'count'=>string'1'(length=1)1=>array(size=2)'user_id'=>string'109'(length=2)'count'=>string'8'(length=1)合并后的數(shù)組（合并條件，a的id==b的user_id時合并）：array(size=3)0=>array(size=3)'id'=>string'113'(length=3)'email'=>string'yintx_1292342352@163.com'(length=24)'count'=>string'1'(length=1)1=>array(size=3)'id'=>string'111'(length=3)'email'=>string'yintx_1293456456@163.com'(length=24)'count'=>string'0'(length=1)2=>array(size=3)'id'=>string'109'(length=3)'email'=>string'yintx_129@99999.com'(length=19)'count'=>string'8'(length=1)

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慕的地6264312

TA貢獻1817條經(jīng)驗獲得超6個贊

array_merge_recursive()函數(shù)與array_merge()函數(shù)一樣，將一個或多個數(shù)組的元素的合并起來，一個數(shù)組中的值附加在前一個數(shù)組的后面。并返回作為結(jié)果的數(shù)組。但是，與array_merge()不同的是，當(dāng)有重復(fù)的鍵名時，值不會被覆蓋，而是將多個相同鍵名的值遞歸組成一個數(shù)組。（參見例子1）"Horse","b"=>"Dog");$a2=array("c"=>"Cow","b"=>"Cat");print_r(array_merge_recursive($a1,$a2));?>輸出：Array([a]=>Horse[b]=>Array([0]=>Dog[1]=>Cat)[c]=>Cow)

反對回復(fù) 2019-04-19