Navigate to matching brace in NetBeans

Posted on 2017-03-10 [Friday] by Jay Jay

So I wanted to know the keyboard shortcut to navigate between matching braces in my PHP (and other) code in NetBeans. I’m running NetBeans 8.2. So I searched and found General Editor Features which said “to find a shortcut for a specific command, type the command name in the Search field.” So the Search field they’re talking about is on the Keymap screen under Tools -> Options. After creating myself a custom Keymap Profile based on the NetBeans default settings I searched in the ‘Search:’ box for ‘match’ and found ‘Insertion Point to Matching Brace’ which is Ctrl+OPEN_BRACKET. Everything is easy when you know how!

Fixing curl SSL certificate problem

Posted on 2017-02-21 [Tuesday] by Jay Jay

So I was having an issue with curl (actually the PHP client at first, but also with the command-line version).

The issue manifested like this:

jj5@orac:~/temp/curl$ curl https://test.jj5.net/my-file.txt
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.

I ran the command in strace:

jj5@orac:~/temp/curl$ strace curl https://test.jj5.net/my-file.txt 2>&1 | less

Noticed this strace output:

stat("/etc/ssl/certs/8d28ae65.0", 0x7ffc33143630) = -1 ENOENT (No such file or directory)

There was no /etc/ssl/certs/8d28ae65.0 file.

I found a copy of 8d28ae65.0 here:

I made a copy of the cert here:

root@orac:/usr/local/share/ca-certificates# ll 8d28ae65.crt 
-rw-r--r-- 1 root staff 2.2K Feb 21 06:53 8d28ae65.crt

I checked what it had to say about itself:

root@orac:/usr/local/share/ca-certificates# openssl x509 -in 8d28ae65.crt -text -noout
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            2b:2e:6e:ea:d9:75:36:6c:14:8a:6e:db:a3:7c:8c:07
    Signature Algorithm: sha384WithRSAEncryption
        Issuer: C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Certification Authority
        Validity
            Not Before: Feb 12 00:00:00 2014 GMT
            Not After : Feb 11 23:59:59 2029 GMT
        Subject: C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Domain Validation Secure Server CA
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:8e:c2:02:19:e1:a0:59:a4:eb:38:35:8d:2c:fd:
                    01:d0:d3:49:c0:64:c7:0b:62:05:45:16:3a:a8:a0:
                    c0:0c:02:7f:1d:cc:db:c4:a1:6d:77:03:a3:0f:86:
                    f9:e3:06:9c:3e:0b:81:8a:9b:49:1b:ad:03:be:fa:
                    4b:db:8c:20:ed:d5:ce:5e:65:8e:3e:0d:af:4c:c2:
                    b0:b7:45:5e:52:2f:34:de:48:24:64:b4:41:ae:00:
                    97:f7:be:67:de:9e:d0:7a:a7:53:80:3b:7c:ad:f5:
                    96:55:6f:97:47:0a:7c:85:8b:22:97:8d:b3:84:e0:
                    96:57:d0:70:18:60:96:8f:ee:2d:07:93:9d:a1:ba:
                    ca:d1:cd:7b:e9:c4:2a:9a:28:21:91:4d:6f:92:4f:
                    25:a5:f2:7a:35:dd:26:dc:46:a5:d0:ac:59:35:8c:
                    ff:4e:91:43:50:3f:59:93:1e:6c:51:21:ee:58:14:
                    ab:fe:75:50:78:3e:4c:b0:1c:86:13:fa:6b:98:bc:
                    e0:3b:94:1e:85:52:dc:03:93:24:18:6e:cb:27:51:
                    45:e6:70:de:25:43:a4:0d:e1:4a:a5:ed:b6:7e:c8:
                    cd:6d:ee:2e:1d:27:73:5d:dc:45:30:80:aa:e3:b2:
                    41:0b:af:bd:44:87:da:b9:e5:1b:9d:7f:ae:e5:85:
                    82:a5
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                keyid:BB:AF:7E:02:3D:FA:A6:F1:3C:84:8E:AD:EE:38:98:EC:D9:32:32:D4

            X509v3 Subject Key Identifier: 
                90:AF:6A:3A:94:5A:0B:D8:90:EA:12:56:73:DF:43:B4:3A:28:DA:E7
            X509v3 Key Usage: critical
                Digital Signature, Certificate Sign, CRL Sign
            X509v3 Basic Constraints: critical
                CA:TRUE, pathlen:0
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Certificate Policies: 
                Policy: X509v3 Any Policy
                Policy: 2.23.140.1.2.1

            X509v3 CRL Distribution Points: 

                Full Name:
                  URI:http://crl.comodoca.com/COMODORSACertificationAuthority.crl

            Authority Information Access: 
                CA Issuers - URI:http://crt.comodoca.com/COMODORSAAddTrustCA.crt
                OCSP - URI:http://ocsp.comodoca.com

    Signature Algorithm: sha384WithRSAEncryption
         4e:2b:76:4f:92:1c:62:36:89:ba:77:c1:27:05:f4:1c:d6:44:
         9d:a9:9a:3e:aa:d5:66:66:01:3e:ea:49:e6:a2:35:bc:fa:f6:
         dd:95:8e:99:35:98:0e:36:18:75:b1:dd:dd:50:72:7c:ae:dc:
         77:88:ce:0f:f7:90:20:ca:a3:67:2e:1f:56:7f:7b:e1:44:ea:
         42:95:c4:5d:0d:01:50:46:15:f2:81:89:59:6c:8a:dd:8c:f1:
         12:a1:8d:3a:42:8a:98:f8:4b:34:7b:27:3b:08:b4:6f:24:3b:
         72:9d:63:74:58:3c:1a:6c:3f:4f:c7:11:9a:c8:a8:f5:b5:37:
         ef:10:45:c6:6c:d9:e0:5e:95:26:b3:eb:ad:a3:b9:ee:7f:0c:
         9a:66:35:73:32:60:4e:e5:dd:8a:61:2c:6e:52:11:77:68:96:
         d3:18:75:51:15:00:1b:74:88:dd:e1:c7:38:04:43:28:e9:16:
         fd:d9:05:d4:5d:47:27:60:d6:fb:38:3b:6c:72:a2:94:f8:42:
         1a:df:ed:6f:06:8c:45:c2:06:00:aa:e4:e8:dc:d9:b5:e1:73:
         78:ec:f6:23:dc:d1:dd:6c:8e:1a:8f:a5:ea:54:7c:96:b7:c3:
         fe:55:8e:8d:49:5e:fc:64:bb:cf:3e:bd:96:eb:69:cd:bf:e0:
         48:f1:62:82:10:e5:0c:46:57:f2:33:da:d0:c8:63:ed:c6:1f:
         94:05:96:4a:1a:91:d1:f7:eb:cf:8f:52:ae:0d:08:d9:3e:a8:
         a0:51:e9:c1:87:74:d5:c9:f7:74:ab:2e:53:fb:bb:7a:fb:97:
         e2:f8:1f:26:8f:b3:d2:a0:e0:37:5b:28:3b:31:e5:0e:57:2d:
         5a:b8:ad:79:ac:5e:20:66:1a:a5:b9:a6:b5:39:c1:f5:98:43:
         ff:ee:f9:a7:a7:fd:ee:ca:24:3d:80:16:c4:17:8f:8a:c1:60:
         a1:0c:ae:5b:43:47:91:4b:d5:9a:17:5f:f9:d4:87:c1:c2:8c:
         b7:e7:e2:0f:30:19:37:86:ac:e0:dc:42:03:e6:94:a8:9d:ae:
         fd:0f:24:51:94:ce:92:08:d1:fc:50:f0:03:40:7b:88:59:ed:
         0e:dd:ac:d2:77:82:34:dc:06:95:02:d8:90:f9:2d:ea:37:d5:
         1a:60:d0:67:20:d7:d8:42:0b:45:af:82:68:de:dd:66:24:37:
         90:29:94:19:46:19:25:b8:80:d7:cb:d4:86:28:6a:44:70:26:
         23:62:a9:9f:86:6f:bf:ba:90:70:d2:56:77:85:78:ef:ea:25:
         a9:17:ce:50:72:8c:00:3a:aa:e3:db:63:34:9f:f8:06:71:01:
         e2:82:20:d4:fe:6f:bd:b1

Seems legit! :)

So I installed it:

root@orac:/usr/local/share/ca-certificates# update-ca-certificates

Bug fixed!

PDO: Execute a prepared statement using array for IN clause

Posted on 2016-12-18 [Sunday] by Jay Jay

See Example #5 here.

/* Execute a prepared statement using an array of values for an IN clause */
$params = array(1, 21, 63, 171);
/* Create a string for the parameter placeholders filled to the number of params */
$place_holders = implode(',', array_fill(0, count($params), '?'));

/*
    This prepares the statement with enough unnamed placeholders for every value
    in our $params array. The values of the $params array are then bound to the
    placeholders in the prepared statement when the statement is executed.
    This is not the same thing as using PDOStatement::bindParam() since this
    requires a reference to the variable. PDOStatement::execute() only binds
    by value instead.
*/
$sth = $dbh->prepare("SELECT id, name FROM contacts WHERE id IN ($place_holders)");
$sth->execute($params);

PHP values

Posted on 2016-03-23 [Wednesday] by Jay Jay

USA Time Zones in PHP

Posted on 2015-02-21 [Saturday] by Jay Jay

See here for a list of US time zones.

Eastern ........... America/New_York
Central ........... America/Chicago
Mountain .......... America/Denver
Mountain no DST ... America/Phoenix
Pacific ........... America/Los_Angeles
Alaska ............ America/Anchorage
Hawaii ............ America/Adak
Hawaii no DST ..... Pacific/Honolulu

Xdebug trace != profile

Posted on 2014-12-21 [Sunday] by Jay Jay

So it just took me all night to figure out that in Xdebug ‘tracing’ is different to ‘profiling’.

It didn’t help that the xdebug.trace_output_name included an example format of ‘cachegrind.out.%s’. Why would you name a trace file cachegrind.out if only profile files are in cachegrind format!?

In my efforts to get profiling to work I found myself loading trace files into KCachegrind and getting the rather unhelpful message: “Could not open the file “/run/shm/xdebug/trace…xt”. Check it exists and you have enough permissions to read it.”

So the error message is about file permissions. I checked and checked and checked again but the file permissions were OK. The problem was I was loading a trace file, not a profile file.

So I gave up on KCachegrind and tried to get webgrind to work. Turns out loading a trace file (not a profile file) into webgrind doesn’t work either. I got the same problem reported by Sven about ‘parsers is undefined’. I fucked around trying to update the jquery.tablesorter plugin in webgrind, but the problem was due to the fact I was loading a tracing file, not a profiling file.

In the end I got it all figured out. Here’s my /etc/php5/mods-enabled/xdebug.ini file:

zend_extension=/usr/lib/php5/20131226/xdebug.so
xdebug.remote_enable=1
xdebug.remote_handler=dbgp
xdebug.remote_mode=req
;xdebug.remote_host=127.0.0.1
xdebug.remote_host=10.1.1.203
;xdebug.remote_port=9000
xdebug.remote_port=9999

; http://www.xdebug.org/docs/all

xdebug.profiler_enable=1
xdebug.profiler_output_dir=/run/shm/xdebug
xdebug.profiler_output_name=cachegrind.out.%t.%R

xdebug.auto_trace=1
xdebug.collect_assignments=1
xdebug.collect_includes=1
xdebug.collect_params=4
xdebug.collect_return=1
xdebug.collect_vars=0
xdebug.show_mem_delta=1
;2 for HTML:
xdebug.trace_format=0
xdebug.trace_options=1
xdebug.trace_output_dir=/run/shm/xdebug
xdebug.trace_output_name=trace.%t.%R
xdebug.var_display_max_children=-1
xdebug.var_display_max_data=-1
xdebug.var_display_max_depth=-1

The above config supports generation of tracing files and profiling files. I can now load my profiling files into KCachegrind and webgrind.

Everything is easy when you know how!

Wildcard matching with PHP and fnmatch

Posted on 2014-09-30 [Tuesday] by Jay Jay

Today I learned about the fnmatch function in PHP. It supports wildcard matching. Handy!

jQuery htmlspecialchars equivalent to encode text as HTML

Posted on 2014-08-18 [Monday] by Jay Jay

Found this which said:

$('<div/>').text('This is fun & stuff').html();

Piping PHP CLI output to less broken

Posted on 2014-08-16 [Saturday] by Jay Jay

Today I had an interesting problem.

When I ran:

 # php test.php | less

The ‘less’ program entered input mode and the up and down arrow (and j, k keys) weren’t working.

Eventually I figured out a solution:

 # php test.php < /dev/null | less

The PHP CLI seems to be interfering with the terminal and piping in /dev/null to PHP CLI stdin fixes the problem!

PHP DateTimeZone->getOffset()

Posted on 2014-07-29 [Tuesday] by Jay Jay

Today I had to use PHP’s DateTimeZone->getOffset() to get a timezone offset. It needed formatting which I did with:

function timezone_offset() {
  $offset = timezone()->getOffset( now() );
  $hours = round( abs( $offset ) / 3600 );
  $minutes = round( ( abs( $offset ) - $hours * 3600 ) / 60 );
  $result = ( $offset < 0 ? '-' : '+' )
    . ( $hours < 10 ? '0' : '' ) . $hours
    . ':'
    . ( $minutes < 10 ? '0' : '' ) . $minutes; 
  return $result;
}

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