Kubadilisha Tabia ya preg_match_all katika PHP

Kwa kutumia parameta ya nne ya funkta preg_match_all unaweza kubadilisha njia ya kikundi za kikomo.

Tuangalie, thamani gani parameta hii inaweza kuchukua:

Parameta	Maelezo
`PREG_PATTERN_ORDER`	Hali ya chaguo-msingi. Matokeo yamegawanywa kwa kikomo - kipengele cha sifuri cha safu kina kikomo cha sifuri, kipengele cha kwanza cha safu kina kikomo cha kwanza na kadhalika.
`PREG_SET_ORDER`	Matokeo yamegawanywa kwa mechi - kila kipengele cha safu kina safu yenye kikomo zilizopatikana.

Sasa tuangalie matumizi ya parameta hii kwa mifano:

Mfano

Tuondoe alama zote za wakati kutoka kwenye mstari na vipengele vyake:

php<?php
  $time = '12:01:02 13:03:04 14:05:06';
  preg_match_all('#(\d\d):(\d\d):(\d\d)#', $time, $res);
  print_r($res);
?>

Matokeo ya kutekeleza kificho:

php[
  0 => ['12:01:02', '13:03:04', '14:05:06'],
  1 => ['12', '13', '14'],
  2 => ['01', '03', '05'],
  3 => ['02', '04', '06']
]

Mfano

Sasa tumia bendera PREG_SET_ORDER kwa kikundi kwa mechi:

php<?php
  $time = '12:01:02 13:03:04 14:05:06';
  preg_match_all('#(\d\d):(\d\d):(\d\d)#', $time, $res, PREG_SET_ORDER);
  print_r($res);
?>

Matokeo ya kutekeleza kificho:

php[
  0 => '12:01:02',
  1 => '12',
  2 => '01',
  3 => '02'
],
[
  0 => '13:03:04',
  1 => '13',
  2 => '03',
  3 => '04'
],
[
  0 => '14:05:06',
  1 => '14',
  2 => '05',
  3 => '06'
]

Kazi za Vitendo

Задание 1

Kuna mstari wenye tarehe:

php<?php
  $str = '2023-10-29 2024-11-30 2025-12-31';
?>

Tafuta tarehe zote, ukitenga mwaka, mwezi na siku katika kikomo tofauti. Fanya ili kikundi cha kwanza kiingie tarehe ya kwanza na kikomo chake, kikundi cha pili - cha pili na kikomo chake na kadhalika.