php不同形式的实现a-z的26个字母的输出
直接上代码:
for($i=ord('a'), $n=ord('z'); $i<=$n; $i++){
echo chr($i),PHP_EOL;
}
echo PHP_EOL;
$char = 'a';
while($char != 'aa'){
echo $char,PHP_EOL;
$char++;
}
echo PHP_EOL;
foreach(range('a','z') as $char){
echo $char,PHP_EOL;
}

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