PHP PHP变量名中的变量

Posted 2021-05-14

// create fifty (50) variable named variables named my_var1, my_var2...
$name = "my_var";

for ($i = 0; $i < 50; $i++)
{

${$name.$i} = rand();

}

echo $my_var3;


// slightly more complex example to create a variably named array w/concatenation
$name = "my_var";

for ($i = 1; $i <=5; ++$i)
   ${$name . $i . '_arr'} = rand();

echo $my_var2_arr;