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PHP two-dimensional array to heavy

2022-08-06 18:28:00 【New and old farmers】

$2dData 是二维数组

 $2dData = array(
     array('id' => 0, 'value' => 'Green tags'),
     array('id' => 1, 'value' => 'Red tags'),
     array('id' => 1, 'value' => 'Red tags'),
);

二维数组去重

$tmp = array();
$result = array();
foreach($2dData as $key => $val){
    
    $tmp[$key] = json_encode($val);
}
unset($val);
$final = array_unique($tmp);
foreach($final as $key => $val){
    
    $result[$key] = json_decode($val, true);
}

结果：

 $result= array(
     array('id' => 0, 'value' => 'Green tags'),
     array('id' => 1, 'value' => 'Red tags'),
);
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