ref: http://curl.haxx.se/docs/sslcerts.html
]]>
[abc] A single character: a, b or c
[^abc] Any single character but a, b, or c
[a-z] Any single character in the range a-z
[a-zA-Z] Any single character in the range a-z or A-Z
^ Start of line
$ End of line
\A Start of string
\z End of string
. Any single character
\s Any whitespace character
\S Any non-whitespace character
\d Any digit
\D Any non-digit
\w Any word character (letter, number, underscore)
\W Any non-word character
\b Any word boundary character
(
) Capture everything enclosed
(a|b) a or b
a? Zero or one of a
a* Zero or more of a
a+ One or more of a
a{3} Exactly 3 of a
a{3,} 3 or more of a
a{3,6} Between 3 and 6 of a
[^abc] Any single character but a, b, or c
[a-z] Any single character in the range a-z
[a-zA-Z] Any single character in the range a-z or A-Z
^ Start of line
$ End of line
\A Start of string
\z End of string
. Any single character
\s Any whitespace character
\S Any non-whitespace character
\d Any digit
\D Any non-digit
\w Any word character (letter, number, underscore)
\W Any non-word character
\b Any word boundary character
(
) Capture everything enclosed(a|b) a or b
a? Zero or one of a
a* Zero or more of a
a+ One or more of a
a{3} Exactly 3 of a
a{3,} 3 or more of a
a{3,6} Between 3 and 6 of a
]]>
瀹為獙浜嗕笅錛屾槸鍙互鐨勩備笉榪囩敤鐨刴aven3
]]>
<?php
$a = array('abc'=>"123");
# var dump
var_dump($a);
# var_export
echo var_export($a);
# export to file
$b = var_export($a, true);
error_log($b."\n", 3, "/tmp/ymiao.log");
$a = array('abc'=>"123");
# var dump
var_dump($a);
# var_export
echo var_export($a);
# export to file
$b = var_export($a, true);
error_log($b."\n", 3, "/tmp/ymiao.log");
Result:
cat /tmp/ymiao.log
array (
'abc' => '123',
)
'abc' => '123',
)
]]>
yum install php-pear
pecl install xdebug
find / -name 'xdebug.so'
pecl install xdebug
find / -name 'xdebug.so'
config php.ini for xdebug extension
; load as zend ext
zend_extension=/usr/lib64/php/modules/xdebug.so
; make sure profiler_enable disable
xdebug.profiler_enable=off
; enable trigger
xdebug.profiler_enable_trigger=on
; make sure web server has write privilege on output dir
xdebug.profiler_output_dir=/tmp
zend_extension=/usr/lib64/php/modules/xdebug.so
; make sure profiler_enable disable
xdebug.profiler_enable=off
; enable trigger
xdebug.profiler_enable_trigger=on
; make sure web server has write privilege on output dir
xdebug.profiler_output_dir=/tmp
restart httpd
send http request
curl 'http://10.1.74.51/admin/php/adapter.php?action=getSystemChartsData&XDEBUG_PROFILE'
get and analyze output log by kcachegrind
]]>