foreach в регулярном выражении?

Question

Можно создать дубликат:
php regular expression help?

привет, я хочу, чтобы заменить

i like apple 
apple is good 
orange is also nice 
my mom likes banana 
apple 123 4 
the pear is soo sweat 
my dad loves pear 

в

i like apple 
apple is good 
orange is also nice 
my mom likes banana 
apple 1 
apple 2 
apple 3 
apple 4 
the pear is soo sweat 
my dad loves pear 

by preg_replace?

Answer 1

<? 
function replace($matches) 
{ 
     return preg_replace("/\s*(\d)\s*/", "$matches[1] $1\n", $matches[2]); 
} 
$s = "i like apple 
apple is good 
orange is also nice 
my mom likes banana 
apple 123 4 
the pear is soo sweat 
my dad loves pear"; 
echo "Before::......\n\n$s\n\nAfter::......\n\n"; 
echo preg_replace_callback('/^(apple) ([\d ]+)\n/m', 'replace', $s); 
echo "\n"; 
?> 

Выход:

Before::...... 

i like apple 
apple is good 
orange is also nice 
my mom likes banana 
apple 123 4 
the pear is soo sweat 
my dad loves pear 

After::...... 

i like apple 
apple is good 
orange is also nice 
my mom likes banana 
apple 1 
apple 2 
apple 3 
apple 4 
the pear is soo sweat 
my dad loves pear