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foreach ( $return_array as $value )
{
//if ( preg_match( "/inet addr:/i", $value, $temp_array) )
if ( preg_match("\binet addr:\b.*\bBcast\b", $value, $temp_array) )
{
echo '<br /><br />';
print_r($temp_array);
//var_dump( $temp_array );
}
}
$s =<<< TXT
br-lan Link encap:Ethernet HWaddr F0:B4:29:55:6C:2E
inet addr:192.168.8.9 Bcast:192.168.8.255 Mask:255.255.255.0
inet6 addr: fdc1:b4aa:57ba::1/60 Scope:Global
inet6 addr: fe80::f2b4:29ff:fe55:6c2e/64 Scope:Link
inet6 addr: fd7b:7c0f:5360:4::1/62 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6135 errors:0 dropped:0 overruns:0 frame:0
TX packets:7308 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:774045 (755.9 KiB) TX bytes:2084983 (1.9 MiB)
TXT;
preg_match('/(?<=addr:)[.\d]+/', $s, $m);
echo $m[0];
192.168.8.9if ( preg_match("/inet addr:(.+?)\s+Bcast:/", $value, $temp_array) )
{
echo '<br /><br />';
print_r($temp_array);
//var_dump( $temp_array );
}
// \b[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}\b
//if (preg_match("/\b[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}\b/", $value, $temp_array))
if (preg_match("/[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}/", $value, $temp_array)) // OK
{
echo '<br /><br />';
//print_r($temp_array);
var_dump( $temp_array );
}
if (preg_match("[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}", $value, $temp_array)) // 放代码里,这行有错误,用工具测试ok.
{
echo '<br /><br />';
//print_r($temp_array);
var_dump( $temp_array );
}