假设我有以下变量:
$var1, $var2, $longrandomstringtomakemypoint
我想将它们插入到这样的数组中:
$array_of_things = array('var1' => $var1, 'var2' => $var2, 'longrandomstringtomakemypoint' => $longrandomstringtomakemypoint);
键入此内容会使我的代码感到混乱,因为我不得不两次输入相同的内容。
是否有定义数组的快捷方式,变量名称为索引?
答案 0 :(得分:6)
$my_array = compact('var1', 'var2', 'anothervar');
答案 1 :(得分:0)
<?php
// LETS SAY YOU HAVE YOUR VARS WITH THE FOLLOWING ASSIGNED VALUES
$var1 == "value1";
$var2 == "value2";
$longrandomstringtomakemypoint = "value3";
$result = compact('var1', 'var2', 'longrandomstringtomakemypoint' );
print_r($result);
?>
输出将是:
Array
(
[var1] => value1
[var2] => value2
[longrandomstringtomakemypoint] => value3
)
[http://us1.php.net/compact] [1]
答案 2 :(得分:0)
我的理解是你要避免两次输入变量名和值。
如果是这种情况,你可以像这样实现它,但这与你想要它的方式相反。
尽管我很怀疑,但无论如何我已经说过了:
/*
* Put the variables and values into an array
*/
$arrayOfVariables =
array(
'var1' => 'var1Value'
,'var2' => 'value2Value'
,'longrandomstringtomakemypoint' => 'longrandomstringtomakemypointValue'
);
/*
* Iterate and create variable and assign values
*/
foreach( $arrayOfVariables as $variableName => $variableValue )
{
/*
* Variable variables
*/
${$variableName} = $variableValue;
}
/*
* Now you can use all those as variables
*/
echo $var1 ,' ' ,$var2 ,' ' ,$longrandomstringtomakemypoint;
@TonyArra提到了可以取代上述foreach的提取函数。