结合数组字符串在PHP

Question

我有以下阵列在PHP

$arrOrders['remains'] = 'ASC'; 
$arrOrders['rate'] = 'DESC'; 

如何使用合并为一个字符串像刚刚与本地函数？

$str = 'remain ASC, rate DESC'; 

Answer 1

$a = array(
    'remains' => 'ASC', 
    'rate'  => 'DSC' 
); 

echo implode(', ', array_map(function($v1, $v2) { 
    return sprintf('%s %s', $v1, $v2); 
}, array_keys($a), array_values($a))); 
// remains ASC, rate DSC 

Answer 2

您正在寻找implode，但剂量不包括键，但页面上的第一个注释是包括按键

/** 
* Implode an array with the key and value pair giving 
* a glue, a separator between pairs and the array 
* to implode. 
* @param string $glue The glue between key and value 
* @param string $separator Separator between pairs 
* @param array $array The array to implode 
* @return string The imploded array 
*/ 
function array_implode($glue, $separator, $array) { 
    if (! is_array($array)) return $array; 
    $string = array(); 
    foreach ($array as $key => $val) { 
     if (is_array($val)) 
      $val = implode(',', $val); 
     $string[] = "{$key}{$glue}{$val}"; 

    } 
    return implode($separator, $string); 

} 


$arrOrders = array(
    'remains' => 'ASC', 
    'rate'  => 'DSC' 
); 
$str = array_implode(' ', ', ', $arrOrders); 

Answer 3

功能你可以这样做：

$string = ''; 
foreach($arrOrders as $key => $value) 
    $string = $string . "$key $value, "; 
$string = rtrim($string, ', '); // cut the last comma at the end of the string 

echo $string // remains ASC, rate DESC 

Answer 4

使用foreach和implode（）

foreach ($arrOrders as $key => $val) { 
$temp[] = "$key $val"; 
} 
$order = implode(',', $temp);