php preg match between two strings

Question

How do I get the IpAddr values from this string below using preg match

{{Id=0|IpAddr=172.28.190.48|gateway=172.17.00.01|mask=255.255.255.240|pref=1}|{Id=0|IpAddr=172.30.228.64|gateway=172.17.01.02|mask=255.255.255.192|pref=1}|{Id=0|IpAddr=0.0.0.0|gateway=172.19.00.01|mask=0.0.0.0|pref=1}}

I tried below but it does not give results

preg_match_all("/.*IpAddr=(.*)\|/", $string, $result_array);

Just add the U modifier in existing your pattern and should be fine — Andrew
– Andrew, Commented Jan 20, 2016 at 14:43

jeroen · Accepted Answer · 2016-01-20 15:04:44Z

2

You are probably matching to much and getting only 1 result, you would need lazy / ungreedy matching:

preg_match_all("/\bIpAddr=(.*?)\|/", $string, $result_array);
                             ^ Lazy / ungreedy match, take as few as possible
                 ^^ a word boundary before the IpAddr string

edited Jan 20, 2016 at 15:04

answered Jan 20, 2016 at 14:46

jeroen

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3 Comments

Santosh Pillai Over a year ago

results in an array. Whats the pipe after the semi colon?

jeroen Over a year ago

@SantoshPillai A typo... And you want an array I suppose as there are multiple matches.

Santosh Pillai Over a year ago

I am writing only one occurrence and still its an array preg_match_all("/\bIpAddr=(.*?)\|/", $string, $result_array); $result = $result_array[1]; fwrite($file, '$result is ' . result . "\r\n");

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