Echo для массива php

Output (echo/print) everything from a PHP Array

Is it possible to echo or print the entire contents of an array without specifying which part of the array? The scenario: I am trying to echo everything from:

while($row = mysql_fetch_array($result))

9 Answers 9

If you want to format the output on your own, simply add another loop (foreach) to iterate through the contents of the current row:

while ($row = mysql_fetch_array($result)) < foreach ($row as $columnName =>$columnData) < echo 'Column name: ' . $columnName . ' Column data: ' . $columnData . '
'; > > 

Or if you don’t care about the formatting, use the print_r function recommended in the previous answers.

while ($row = mysql_fetch_array($result)) < echo '
'; print_r ($row); echo '
 
'; > 
 
print_r() prints only the keys and values of the array, opposed to var_dump() whichs also prints the types of the data in the array, i.e. String, int, double, and so on. If you do care about the data types — use var_dump() over print_r().
 
For nice & readable results, use this:
 
function printVar($var) < echo '
'; var_dump($var); echo '
 
'; > 
 
The above function will preserve the original formatting, making it (more)readable in a web browser.
 
 
This function displays structured information about one or more expressions that includes its type and value. Arrays and objects are explored recursively with values indented to show structure.
 
 
I think you are looking for print_r which will print out the array as text. You can’t control the formatting though, it’s more for debugging. If you want cool formatting you’ll need to do it manually.
 
This is a little function I use all the time its handy if you are debugging arrays. Its pretty much the same thing Darryl and Karim posted. I just added a parameter title so you have some debug info as what array you are printing. it also checks if you have supplied it with a valid array and lets you know if you didn’t.
 
function print_array($title,$array)< if(is_array($array))< echo $title."
". "||---------------------------------||
". "
"; print_r($array); echo "
 
". "END ".$title."
". "||---------------------------------||
"; >else < echo $title." is not an array."; >> 
 
//your array $array = array('cat','dog','bird','mouse','fish','gerbil'); //usage print_array("PETS", $array); 
 
PETS ||---------------------------------|| Array ( [0] => cat [1] => dog [2] => bird [3] => mouse [4] => fish [5] => gerbil ) END PETS ||---------------------------------|| 
 
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Как вывести PHP массив
 
Примеры использования PHP функций и циклов для вывода всех элементов массива в окно браузера.
 
 Функция print_r() 
 
Функция print_r() выводит информацию о переменной в удобочитаемом виде. Чтобы отобразить пробелы и переносы результат функции нужно обернуть в тег .
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); echo '
'; print_r($array); echo '
 
'; 
 
Результат:
 
Array ( [0] => Andi [1] => Benny [2] => Cara [3] => Danny [4] => Emily )
 
 Функция var_dump() 
 
Функция var_dump() отображает информацию о переменной, включая тип и значение.
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); echo '
'; var_dump($array); echo '
 
'; 
 
Результат:
 
array(5) < [0]=>string(4) "Andi" [1]=> string(5) "Benny" [2]=> string(4) "Cara" [3]=> string(5) "Danny" [4]=> string(5) "Emily" >
 
 var_export() 
 
Функция var_export() возвращает строковое представление переменной в виде полноценного PHP-кода.
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); echo '
'; echo var_export($array); echo '
 
';
 
Результат:
 
array ( 0 => 'Andi', 1 => 'Benny', 2 => 'Cara', 3 => 'Danny', 4 => 'Emily', )
 
 Цикл foreach 
 
Цикл foreach специально создан для поэлементного перебора массивов.
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); foreach ($array as $row) < echo $row . "
\r\n"; >
 
Результат:
 
Andi 
Benny 
Cara 
Danny 
Emily
 
Пример с выводом нумерованного списка с использованием индексов массива:
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); foreach ($array as $n => $row) < echo ($n + 1) . '.' . $row . "
\r\n"; >
 
Результат:
 
1.Andi 
2.Benny 
3.Cara 
4.Danny 
5.Emily
 
Чтобы не выводить последний 
, добавим условие:
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); foreach ($array as $n => $row) < echo ($n + 1) . '.' . $row; if ($n < count($array) - 1) < echo "
\r\n"; > >
 
Результат:
 
1.Andi 
2.Benny 
3.Cara 
4.Danny 
5.Emily
 
 Цикл for 
 
Цикл for подойдет только в случаях, когда индексы массива имеют непрерывную нумерацию.
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); for ($n = 0; $n < count($array); $n++) < echo $n + 1 . '.' . $array[$n] . "
\r\n"; >
 
Результат:
 
1.Andi 
2.Benny 
3.Cara 
4.Danny 
5.Emily
 
 Цикл while 
 
Цикл while такое же работает как и for .
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); $index = 0; while ($index < count($array)) < echo $index + 1 . '.' . $array[$index] . "
\r\n"; $index++; >
 
Результат:
 
1.Andi 
2.Benny 
3.Cara 
4.Danny 
5.Emily
 
 Функция implode() 
 
Также, для вывода массива удобно использовать функцию implode() , которая объединяет элементы массива через разделитель.
 
$array = array( 'Andi', 'Benny', 'Cara', 'Danny', 'Emily', ); echo implode("
\r\n", $array);
 
Результат:
 
Andi 
Benny 
Cara 
Danny 
Emily
 
Источник
 
How can I echo or print an array in PHP?
 
 print_r($array); or if you want nicely formatted array then:
 
 
Nice and elegant. You might want to change the closing tag in #1 from 
 
to
 
 .
 @Robin 
 
tag displays new lines and tabulation as it's outputed by print_r(); without 
you would see a messy unformatted bounds of data. To see it formatted you should then view the html page source.
 
foreach($results['data'] as $result) < echo $result['type'], '
'; > 
 
how can I insert this information in a database? for example, if I have a table with a column named type and i want o insert [0]['type'] , [1]['type'] and so on?
 
If you just want to know the content without a format (e.g., for debugging purposes) I use this:
 
This will show it as a JSON which is pretty human-readable.
 
I wanted to extract some data from a html - php document using Cordova InAppBrowser executeScript method, without json_encode($array) I could not achieve that! Thanks a lot @Mark E
 
There are multiple functions for printing array content that each has features.
 
 print_r() 
 
Prints human-readable information about a variable.
 
 var_dump() 
 
Displays structured information about expressions that includes its type and value.
 
array(3) < [0]=>string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" > 
 
 var_export() 
 
Displays structured information about the given variable that returned representation is valid PHP code.
 
Note that because the browser condenses multiple whitespace characters (including newlines) to a single space (answer), you need to wrap above functions in to display result in thee correct format.
 
Also, there is another way to print array content with certain conditions.
 
 echo 
 
Output one or more strings. So if you want to print array content using echo , you need to loop through the array and in the loop use echo to print array items.
 
foreach ($arr as $key=>$item) < echo "$key =>$item 
"; > 
 
Источник
 
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