PHP Array Exercises : Filter a multi-dimensional array and get those items that will match with the specified value
PHP Array: Exercise-52 with Solution
Write a PHP function to filter a multi-dimensional array. The function will return those items that will match with the specified value.
Sample Solution:
PHP Code:
<?php
function array_filter_by_value($my_array, $index, $value)
{
if(is_array($my_array) && count($my_array)>0)
{
foreach(array_keys($my_array) as $key){
$temp[$key] = $my_array[$key][$index];
if ($temp[$key] == $value){
$new_array[$key] = $my_array[$key];
}
}
}
return $new_array;
}
$colors = array(
0 => array('key1' => 'Red', 'key2' => 'Green', 'key3' => 'Black'),
1 => array('key1' => 'Yellow', 'key2' => 'White', 'key3' => 'Pink')
);
$results = array_filter_by_value($colors, 'key2', 'White');
print_r($results);
?>
Sample Output:
Array ( [1] => Array ( [key1] => Yellow [key2] => White [key3] => Pink ) )
Flowchart:

PHP Code Editor:
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Previous: Write a PHP program to filter out some array elements with certain key-names.
Next: Write a PHP script to delete a specific value from an array using array_filter() function.
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PHP: Tips of the Day
PHP: Where does PHP store the error log? (php5, apache, fastcgi, cpanel)
PHP stores error logs in /var/log/apache2 if PHP is an apache2 module. Shared hosts are often storing log files in your root directory /log subfolder. But...if you have access to a php.ini file you can do this:
error_log = /var/log/php-scripts.log
According to rinogo's comment: If you're using cPanel, the master log file you're probably looking for is stored (by default) at
/usr/local/apache/logs/error_log
If all else fails you can check the location of the log file using
<?php phpinfo(); ?>
Ref : https://bit.ly/2EffgH5
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