拥有以下数组:
array(4) {
[0]=>
array(2) {
[0]=>
string(3) "233"
[1]=>
string(37) "some data"
}
[1]=>
array(2) {
[0]=>
string(3) "233"
[1]=>
string(68) "some other data"
}
[2]=>
array(2) {
[0]=>
string(3) "144"
[1]=>
string(38) "some other data"
}
[3]=>
array(2) {
[0]=>
string(3) "233"
[1]=>
string(42) "some other data"
}
}
我想用一些随机HEX颜色替换值233
和144
(内部数组中的键0
)。例如,具有相同键(233
)的那些必须具有相同的HEX颜色(FFF000
,例如在上面所需的解决方案中)。
这是我用来生成随机HEX颜色的函数:
function randHEXcolor() {
return sprintf('%06X', mt_rand(0, 0xFFFFFF));
}
我想要的输出应该是:
array(4) {
[0]=>
array(2) {
[0]=>
string(6) "FFF000"
[1]=>
string(37) "some data"
}
[1]=>
array(2) {
[0]=>
string(6) "FFF000"
[1]=>
string(68) "some other data"
}
[2]=>
array(2) {
[0]=>
string(6) "111333"
[1]=>
string(38) "some other data"
}
[3]=>
array(2) {
[0]=>
string(6) "FFF000"
[1]=>
string(42) "some other data"
}
}
我怎么能达到这个目的?
提前致谢。
答案 0 :(得分:0)
foreach ($array as &$item) {
if (!isset($temp[$item[0]]) {
$temp[$item[0]] = randHEXcolor();
}
$item[0] = $temp[$item[0]];
}
答案 1 :(得分:0)
如果您希望将所有值转换为相同的随机颜色,则必须保存这些颜色:
$colors_translation = array();
foreach ($array as &$item) {
$color = $item[ 0 ];
$translate = $colors_translation[ $color ];
if (empty($translate)) {
$colors_translations[ $color ] = $translate = randHEXcolor();
}
$item[ 0 ] = $translate;
}
答案 2 :(得分:0)
使用in_array
和isset
函数的解决方案:
$keys = [];
foreach ($arr as &$v) { // $arr is your initial array
if (in_array($v[0], ['233', '144'])) {
if (!isset($keys[$v[0]])) $keys[$v[0]] = sprintf('%06X', mt_rand(0, 0xFFFFFF));
$v[0] = $keys[$v[0]];
}
}
print_r($arr);
输出:
Array
(
[0] => Array
(
[0] => 65A4BB
[1] => some data
)
[1] => Array
(
[0] => 65A4BB
[1] => some data
)
[2] => Array
(
[0] => DDB588
[1] => some data
)
[3] => Array
(
[0] => 65A4BB
[1] => some data
)
)
答案 3 :(得分:0)
此代码将在遍历数组时创建颜色映射。如果您想要预定义的颜色翻译,请预先填充$colorMap
。
<?php
$array = array(
0 => array(
0 => "233",
1 => "some data"
),
1 => array(
0 => "233",
1 => "some data"
),
2 => array(
0 => "144",
1 => "some data"
),
3 => array(
0 => "233",
1 => "some data"
),
);
$colorMap = array();
foreach ($array as &$inner) {
if (!array_key_exists($inner[0],$colorMap)) {
$newColor = randHEXcolor();
$colorMap[$inner[0]] = $newColor;
$inner[0] = $newColor;
} else {
$inner[0] = $colorMap[$inner[0]];
}
}
function randHEXcolor() {
return sprintf('%06X', mt_rand(0, 0xFFFFFF));
}
print_r($array);
print_r($colorMap);
Array
(
[0] => Array
(
[0] => F1519A
[1] => some data
)
[1] => Array
(
[0] => F1519A
[1] => some data
)
[2] => Array
(
[0] => 2F7D00
[1] => some data
)
[3] => Array
(
[0] => F1519A
[1] => some data
)
)
Array
(
[233] => F1519A
[144] => 2F7D00
)
答案 4 :(得分:-1)
尝试:
<?php
$array = array(
0 => array(
0 => "233",
1 => "some data"
),
1 => array(
0 => "233",
1 => "some data"
),
2 => array(
0 => "144",
1 => "some data"
),
3 => array(
0 => "233",
1 => "some data"
),
);
function randHEXcolor() {
return sprintf('%06X', mt_rand(0, 0xFFFFFF));
}
$firstHex = randHEXcolor();
$secondHex = randHEXcolor();
foreach($array as $arrayIndex => &$arrayValue){
if($arrayValue[0] == "144"){
$arrayValue[0] = $firstHex;
}
if($arrayValue[0] == "233"){
$arrayValue[0] = $secondHex;
}
}
输出:
array(4) {
[0]=>
array(2) {
[0]=>
string(6) "AB8248"
[1]=>
string(9) "some data"
}
[1]=>
array(2) {
[0]=>
string(6) "AB8248"
[1]=>
string(9) "some data"
}
[2]=>
array(2) {
[0]=>
string(6) "22AF8B"
[1]=>
string(9) "some data"
}
[3]=>
&array(2) {
[0]=>
string(6) "AB8248"
[1]=>
string(9) "some data"
}
}