preg replace - convert ereg_replace to preg_replace in php -

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this question has answer here:

i have following ereg_replace statement:

ereg_replace ( ".*alternative0=\"[^\"]*\"[ ]{0,10}>", "", $v );

since ereg_replace deprecated upgrade preg_replace , want upgrade code first occurrence replaced. 

preg_replace ("/.*alternative0=\".*?\".*>/", "", $v,1 );

but seems work partially.

the major problem when have whitespace between " , > preg not work

here example strings want to change:

<tag type="head" alternative0="not head">{!head!}</tag> <tag type="tail" alternative0="tail>{!not tail!}</tag>

but may be:

<tag type="head" alternative0="not head">{! xxxx   !}</tag>

or even:

<tag type="header" alternative0="not head "    > {!  blah bla !}</tag>

you have more efficient pattern this:

preg_replace ('/.*alternative0="[^"]++"[^>]*+>/', "", $v, 1);

you can't use like: .*> because dot match characters , quantifier * greedy .* match final > , > pattern never matched or not matched @ offset.


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