在PHP中打印多個數組中的值

Question

如何在PHP中打印多個數組中的值？

例如這裏是我有的結構，我想從這些arryas打印filepath，這裏顯然我們有兩個數組，但在我的情況下它是動態的。如何從未知數量的數組打印filepath？

[field_pic] => Array 
    (
     [0] => Array 
      (
       [fid] => 29 
       [uid] => 1 
       [filename] => 011.jpg 
       [filepath] => sites/default/files/011.jpg 
       [filemime] => image/jpeg 
       [filesize] => 154608 
       [status] => 1 
       [timestamp] => 1349463183 
       [list] => 1 
       [data] => 
      ) 

     [1] => Array 
      (
       [fid] => 31 
       [uid] => 1 
       [filename] => 019.jpg 
       [filepath] => sites/default/files/019.jpg 
       [filemime] => image/jpeg 
       [filesize] => 158635 
       [status] => 1 
       [timestamp] => 1349463188 
       [list] => 1 
       [data] => 
      ) 
    ) 

Answer 1

嘗試：

for($i = count($field_pic) -1 ; $i >= 0 ; $i--){ //You have to substract 1 to the array length because it's of bound 
    echo "filepath=" . $field_pic[$i]['filepath']; 
} 

實施例：

$arr = array(1,2,3) 

Count($arr) = 3; 但`$陣列[3] =未定義;

Answer 2

foreach($field_pic as $pic) 
    var_dump($pic["filepath"]); 

你想讓它這樣嗎？

Answer 3

輸出它自己的線

foreach($field_pics as $field_pic) 
{ 
    echo $field_pic['filepath'] . '<br />'; 
} 

Answer 4

每個文件路徑假設你的二維數組稱爲$main以下應該實現自己的目標：

#create an array to store the filenames 
$filenames_array = array(); 

# this will loop through the first array 
foreach($main as $subarray) 
{ 
    # append the filename to the end of the array you created to store these names 
    $filenames_array[] = $subarray['filename']; 
} 

var_dump($filenames_array); 

這應該解決這個問題。

P.S.這是你的功課嗎？

Answer 5

真的感謝大家，這是我如何固定它：

for($i = count($node->field_pic) ; $i >= 0 ; $i--){ 
    echo $node->field_pic[$i]['filepath']; 
}