regular expression for getting update string is not getting

Question

i have a file which contains a lot of update query and some other data i need to get the update query from that file using regular expression

my file contains :

2012-03-14 23:29:24 WebModule[]update PAYOUT_HDR set C_ELNO='665656' where N_ID='68' and D_TO=to_date('24/02/2012','dd/MM/yyyy') 2012-03-14 23:57:57 WebModule[]update address_dtl set C_FIRM_NAME='MISS', c_fname='gggg', c_lname='testtt.G',c_addr1='test
',c_addr2='test',c_addr3='test,
testtt',c_district='31001',c_state='27',c_zip_code='444',c_tele_no='555555',c_mobile='444444',c_email='4444@44.com' where n_id=522 and c_type='666'

i tried

preg_match_all("/\update (.*)\)/i", $contents, $matches, PREG_SET_ORDER);

but its not working. Please help me to fix this issue

preg_match_all("/update (.*\))/i", $contents, $matches, PREG_SET_ORDER);

ok if the query ends with a ) but i need all update queries

Answer 1

If that is just a string in your file then you can read that file and get all the data into a variable and after that you can split that string like:-

$array = explode(" WebModule[]",$string);
echo "<pre>";
print_r($array);

$string is the variable that keeps the entire string.

Answer 2

您无需在更新中转义“ u”-假设您正在调用perl模式（PCRE）

/update (.*)\)/i

Answer 3

You have an error in your regex. The below works with your sample input.

preg_match_all("/update (.*\))/i", $contents, $matches, PREG_SET_ORDER);

That said, your current approach only matches queries that end with a ).

Update

This will get both update queries from you example string:

<?php

$contents = "2012-03-14 23:29:24 WebModule[]update PAYOUT_HDR set C_ELNO='665656' where N_ID='68' and D_TO=to_date('24/02/2012','dd/MM/yyyy') 2012-03-14 23:57:57 WebModule[]update address_dtl set C_FIRM_NAME='MISS', c_fname='gggg', c_lname='testtt.G',c_addr1='test
',c_addr2='test',c_addr3='test,
testtt',c_district='31001',c_state='27',c_zip_code='444',c_tele_no='555555',c_mobile='444444',c_email='4444@44.com' where n_id=522 and c_type='666'";

$parts = preg_split('/\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}/', $contents);
$updates = array();
foreach($parts as $part){
    if(!trim($part)){
        continue;
    }
    preg_match_all("/update.*/si", $part, $matches);
    if(count($matches)){
        $updates[] = $matches[0][0];
    }
}
print_r($updates);