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Thank you for your enthusiastic reply. Sorry, I didn't make it clear when I described the problem, which delayed your time. For example, the word "Chongqing", because the word "heavy" is a multi-tone word, reads: C, Z; and "Qing: Q should combine all the pronunciations: CQ, ZQ, "...

Thank you for your enthusiastic reply. Sorry, I didn't make it clear when I described the problem, which delayed your time.

For example:
The word "Chongqing", because the word "heavy" is a multi-tone word, reads: C, Z; and the word "Qing", reads: Q to combine all the pronunciations: CQ, ZQ
So,
In this case, the CQC, ZQC, CQZ, and ZQZ pronunciation should be combined.

Then more words are combined into more combinations.

How can this problem be achieved?

$arr = array('a','b');$single = array('c','b');function merge(){    $arg = func_get_args();    $r = array();    if(0 < count($arg) && is_array($arg[0])){        $base = $arg[0];        foreach ($arg as $k => $v) {            if($k > 0 && is_array($v)){                foreach($base as $sk=>$sv){                    foreach ($v as $tk => $tv) {                        array_push($r, $sv.$tv);                    }                }            }        }        if(0 < count($r)){            return $r;        }else{            return !1;        }    }else{        return !1;    }}var_dump(merge($arr, $single));

Reply content:

Thank you for your enthusiastic reply. Sorry, I didn't make it clear when I described the problem, which delayed your time.

For example:
The word "Chongqing", because the word "heavy" is a multi-tone word, reads: C, Z; and the word "Qing", reads: Q to combine all the pronunciations: CQ, ZQ
So,
In this case, the CQC, ZQC, CQZ, and ZQZ pronunciation should be combined.

Then more words are combined into more combinations.

How can this problem be achieved?

$arr = array('a','b');$single = array('c','b');function merge(){    $arg = func_get_args();    $r = array();    if(0 < count($arg) && is_array($arg[0])){        $base = $arg[0];        foreach ($arg as $k => $v) {            if($k > 0 && is_array($v)){                foreach($base as $sk=>$sv){                    foreach ($v as $tk => $tv) {                        array_push($r, $sv.$tv);                    }                }            }        }        if(0 < count($r)){            return $r;        }else{            return !1;        }    }else{        return !1;    }}var_dump(merge($arr, $single));

Use a function:

The meaning of your image: a large array contains two small arrays, and now the third array is given, which is combined into each small array of the large array.

Implementation principle:

Array merging and returning a new array function: array_merge ().

Function merge ($ a1, $ a2, $ a3 ){
$ Result = array ();
$ T1 = arrar_merge ($ a1, $ a3 );
$ T2 = arrar_merge ($ a2, $ a3 );
$ Result [] = $ t1;
$ Result [] = $ t2;
Return $ result;
}

   $item) {        $arr[$key][0] = $arr[$key][0].$single[0];    }    var_dump($arr);

$ Answer = array_map (function ($ subArray) use ($ third) {return array_merge ($ subArray, $ third) ;}, $ first );
Do not blame?