《PHP實(shí)戰(zhàn)：PHP遞歸刪除多維數(shù)組中的某個(gè)值》要點(diǎn)：
本文介紹了PHP實(shí)戰(zhàn)：PHP遞歸刪除多維數(shù)組中的某個(gè)值，希望對(duì)您有用。如果有疑問(wèn)，可以聯(lián)系我們。
今天在做業(yè)務(wù)邏輯的過(guò)程中,需要在一個(gè)不確定的多維數(shù)組中刪除某個(gè)特定的key,查了挺長(zhǎng)時(shí)間加上自己的修改,終于滿(mǎn)足了業(yè)務(wù)邏輯,該方法在修改后應(yīng)該可以適用于很多地方,所以記錄下來(lái)以備后用,我這里是一個(gè)多維數(shù)組,還是json_encode后的,主要目的是刪除所有old_tags_id數(shù)組中有tag_id=264的數(shù)據(jù),順便要?jiǎng)h除相應(yīng)的tag_name,還有 addtag要減1,,代碼如下:PHP實(shí)戰(zhàn)
先放遞歸函數(shù),當(dāng)然這里是核心,很多人看了這個(gè)應(yīng)該就已經(jīng)知道如何使用了.PHP實(shí)戰(zhàn)
public function dealMenuTagDelete(&$menuData, $tag_id)
{
if (!is_array($menuData)) {
return false;
}
foreach ($menuData as $key => $val) {
if ($key === 'old_tags_id') {
foreach ($val as $tagKey => $tagVaule) {
if ($tagVaule == $tag_id) {
unset($menuData['old_tags_id'][$tagKey]);
unset($menuData['old_tags'][$tagKey]);
$menuData['addtag']--;
}
}
}
if (is_array($val)) {
self::dealMenuTagDelete($menuData[$key], $tag_id);
}
}
return $menuData;
}
維數(shù)組長(zhǎng)這樣,還是jeson_encode后的格式:PHP實(shí)戰(zhàn)
[ {
"typ": "res_ejcd",
"tit": "message1",
"data": "1@2@3",
"subdata": {
"zizicd1": {
"typ": "res_wb",
"data": "qqqq",
"addtag": 1,
"old_tags": [
"\"campaign綜合分析\"",
"test add a tag"
],
"old_tags_id": [
"264",
"17"
],
"new_tags_id": [],
"tit": "1"
},
"zizicd2": {
"typ": "res_wb",
"data": "wwww",
"addtag": 1,
"old_tags": [
"test add a tag"
],
"old_tags_id": [
"17"
],
"new_tags_id": [],
"tit": "2"
},
"zizicd3": {
"typ": "res_wb",
"data": "ddd",
"addtag": 1,
"old_tags": [],
"old_tags_id": [],
"new_tags_id": [
"new_tag1"
],
"tit": "3"
}
},
"addtag": 0,
"old_tags": [],
"old_tags_id": [],
"new_tags_id": []
},
{
"typ": "res_tw",
"tit": "Post",
"data": "2121",
"subdata": null,
"addtag": 1,
"old_tags": [
"“519引號(hào)閱讀user message圖文”"
],
"old_tags_id": [
"183"
],
"new_tags_id": []
},
{
"typ": "res_wb",
"tit": "Today1",
"data": "12312321",
"subdata": null,
"addtag": 1,
"old_tags": [],
"old_tags_id": [],
"dynamicdata": "{\"default\":{\"message_type\":\"1\",\"val\":\"dynamic\"},\"segementation\":[{\"segId\":\"451\",\"message_type\":\"1\",\"val\":\"你屬于conversation 80這一組\"},{\"segId\":\"450\",\"message_type\":\"1\",\"val\":\"poll-1212\\n有三個(gè)人,rainbow H T_T\"}]}",
"configId": "2392",
"new_tags_id": [
"new_tag2"
]
}
]
然后賦值,調(diào)用PHP實(shí)戰(zhàn)
$tag_id = 264; $menuData = json_decode($data,true);//這里第二個(gè)參數(shù)用true就會(huì)轉(zhuǎn)化為數(shù)組了 self::dealMenuTagDelete($menuData,$tag_id); print_r($menuData);
以上所述是小編給大家介紹的PHP遞歸刪除多維數(shù)組中的某個(gè)值,希望對(duì)大家有所幫助,如果大家有任何疑問(wèn)請(qǐng)給我留言,小編會(huì)及時(shí)回復(fù)大家的.在此也非常感謝大家對(duì)維易PHP網(wǎng)站的支持!PHP實(shí)戰(zhàn)
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