PHP数组访问常用方法解析

for ( $i = 0; $i  count($arr); $i++ ){
  echo $arr[i] . 'br/>';
}

foreach ( $arr as $value ){
  echo $value . 'br/>';
}

foreach ( $arr as $key => $value ){
 echo $key . ' - ' . $value . 'br/>';
}

while($item = each($arr)){
 echo $item['key'] . ' - ' . $item['value'] . 'br/>';
}

while ( list( $item, $value ) = each($arr)){
 echo "$item - $valuebr/>";
}