在PHP中生成所有可能的4位数字并用字符串连接它们[关闭]

Question

So, I want to generate all possible 4 digit numbers in columns, one by one, (0-9) from 0000 to 9999, and concatenate a string before them, like:

text0000
text0001
text0002
text0003
text0004
text0005

Thanks in advance.

Answer 1

Following will do the trick.

for($i=0;$i<10000;$i++)
  echo "text".str_pad ($i,4,'0', STR_PAD_LEFT)."<br />";