search a php array for partial string match [duplicate]

For a partial match you can iterate the array and use a string search function like strpos().

function array_search_partial($arr, $keyword) {    foreach($arr as $index => $string) {        if (strpos($string, $keyword) !== FALSE)            return $index;    }}

For an exact match, use in_array()

in_array('green', $arr)

You can use preg_grep function of php. It's supported in PHP >= 4.0.5.

$array = array(0 => 'blue', 1 => 'red', 2 => 'green string', 3 => 'red');$m_array = preg_grep('/^green\s.*/', $array);

$m_array contains matched elements of array.

There are several ways...

$arr = array(0 => 'blue', 1 => 'red', 2 => 'green string', 3 => 'red');

Search the array with a loop:

$results = array();foreach ($arr as $value) {  if (strpos($value, 'green') !== false) { $results[] = $value; }}if( empty($results) ) { echo 'No matches found.'; }else { echo "'green' was found in: " . implode('; ', $results); }

Use array_filter():

$results = array_filter($arr, function($value) {    return strpos($value, 'green') !== false;});

In order to use Closures with other arguments there is the use-keyword. So you can abstract it and wrap it into a function:

function find_string_in_array ($arr, $string) {    return array_filter($arr, function($value) use ($string) {        return strpos($value, $string) !== false;    });}$results = find_string_in_array ($arr, 'green');if( empty($results) ) { echo 'No matches found.'; }else { echo "'green' was found in: " . implode('; ', $results); }

Here's a working example: http://codepad.viper-7.com/xZtnN7