Search for partial value match in an Array

问题

I'm looking for a function where given this array,

array(
 [0] =>
  array(
   ['text'] =>'I like Apples'
   ['id'] =>'102923'
 )
 [1] =>
  array(
   ['text'] =>'I like Apples and Bread'
   ['id'] =>'283923'
 )
 [2] =>
  array(
  ['text'] =>'I like Apples, Bread, and Cheese'
  ['id'] =>'3384823'
 )
 [3] =>
  array(
  ['text'] =>'I like Green Eggs and Ham'
  ['id'] =>'4473873'
 ) 
etc..

I want to search for the needle

"Bread"

and get the following result

[1] =>
  array(
   ['text'] =>'I like Apples and Bread'
   ['id'] =>'283923'
 )
 [2] =>
  array(
  ['text'] =>'I like Apples, Bread, and Cheese'
  ['id'] =>'3384823'

回答1:

Use array_filter. You can provide a callback which decides which elements remain in the array and which should be removed. (A return value of false from the callback indicates that the given element should be removed.) Something like this:

$search_text = 'Bread';

array_filter($array, function($el) use ($search_text) {
        return ( strpos($el['text'], $search_text) !== false );
    });

For more information:

array_filter
strpos return values

回答2:

also check this answer

$filenames=array("120_120_435645.jpg","150_150_312312.jpg","250_250_1232327.jpg");
$matches = preg_grep("/312312/", $filenames);

回答3:

is there a reason for multi array. is id unique and can it be used as index.

$data=array(

  array(
   'text' =>'I like Apples',
   'id' =>'102923'
 )
,
  array(
   'text' =>'I like Apples and Bread',
   'id' =>'283923'
 )
,
  array(
  'text' =>'I like Apples, Bread, and Cheese',
  'id' =>'3384823'
 )
,
  array(
  'text' =>'I like Green Eggs and Ham',
  'id' =>'4473873'
 )

 );

$findme='bread';

 foreach ($data as $k=>$v){

 if(stripos($v['text'], $findme) !== false){
 echo "id={$v[id]} text={$v[text]}<br />"; // do something $newdata=array($v[id]=>$v[text])
 }

 }

来源：https://stackoverflow.com/questions/6932438/search-for-partial-value-match-in-an-array

标签

php

multidimensional-array