Posts containing helpful PHP functions, PHP classes or libraries, tiny code snippets or configuration.
Invalid SSL certificate on pear.php.net One of the PEAR servers had a harddisk crash and got replaced by an intermediate Server, which causes the certificate to be invalid at the moment. From the intermediate website: The server running pear.php.net had a fatal hard disk failure and gets replaced by a new machine this week. Until…
Taken from Stackoverflow, credits to @ryannerd. User contributed content licensed under cc-wiki with attribution required. Guide to install PHP7
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./buildconf mkdir ~/tmp cd ~/tmp git clone https://git.php.net/repository/php-src.git cd php-src |
So far so good. At this point I started having problems:
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./buildconf |
Reported that I did not have make installed. The solution was found here:http://askubuntu.com/questions/192645/make-command-not-found I tried this, but still had problems so I did…
Yesterday, PHP7 alpha has been released: THIS IS A DEVELOPMENT PREVIEW – DO NOT USE IT IN PRODUCTION! PHP 7.0.0 Alpha 1 comes with new version of the Zend Engine with features such as (incomplete list): Improved performance: PHP 7 is up to twice as fast as PHP 5.6 Consistent 64-bit support Many fatal errors…
Using HHVM 3.7.1 and GDLib extension, and you try to load a font, you may encounter the following error:
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Fatal error: f_imageloadfont is not supported: NYI in image.php on line 2 |
This is because the function imageloadfont(); is not implemented yet. Here is the Github issue you can read about an update: https://github.com/facebook/hhvm/issues/5468
How to use HHVM with Opcache? HHVM compiles PHP-code in a different way and cannot make use of Opcache. So it’s pretty normal you will not be able to install HHVM with opcache. Opcache and HHVM don’t go together. HHVM can utilize APC HHVM can be configured to use APC caching instead. Consider the following…
Just installed Debian 8. I’m using php5-cli for cronjobs, HHVM for webpages (using fcgiwrap) and MongoDB for various collections. Here are my current source for Debian Jessie as bash commands, offering org sources. I included pin preference files for apt to set priorities, which source to use for which package.
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# Common apt-get install python-software-properties wget # MonbgoDB 3.0 apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10 echo "deb http://repo.mongodb.org/apt/debian wheezy/mongodb-org/3.0 main" | tee /etc/apt/sources.list.d/mongodb-org-3.0.list printf "Package: mongodb-org*\nPin: origin repo.mongodb.org\nPin-Priority: 9991\n" | tee /etc/apt/preferences.d/mongodb-org # Dotdeb && PHP 5.6 wget http://www.dotdeb.org/dotdeb.gpg && apt-key add dotdeb.gpg && rm dotdeb.gpg printf "deb http://packages.dotdeb.org jessie all\ndeb-src http://packages.dotdeb.org jessie all" | tee /etc/apt/sources.list.d/dotdeb.list printf "deb http://packages.dotdeb.org wheezy-php56-zts all\ndeb-src http://packages.dotdeb.org wheezy-php56-zts all" | tee /etc/apt/sources.list.d/php-dotdeb-5.6.list printf "Package: php5*\nPin: origin packages.dotdeb.org\nPin-Priority: 9993\n" | tee /etc/apt/preferences.d/php-dotdeb # HHVM apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0x5a16e7281be7a449 echo deb http://dl.hhvm.com/debian jessie main | tee /etc/apt/sources.list.d/hhvm-org.list printf "Package: hhvm*\nPin: origin dl.hhvm.com\nPin-Priority: 9994\n" | tee /etc/apt/preferences.d/hhvm-org apt-get update |
NGINX on Debian ships with new configuration files I just updated the nginx package which delivered new configuration files and caused the php-fpm worker to fail. There was no error message in none of those files /var/log/nginx/error.log, /var/log/php-fpm.log and /var/log/syslog . Restarting nginx did not help. When I noticed HTML files got served correctly but…
Consider the following code snippet:
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<?php class foo { protected $bar; public function setBar($val) { $this->bar = $val; } public function __get($var) { return $this->$var; } } $obj = new foo (); $obj->setBar('PHP Voodooo'); var_dump($obj->bar); // Prints 'PHP Voodooo' var_dump(empty($obj->bar)); // Prints 'true' |
Explanation Although we have text in the output, PHP tells us the variable is empty. What’s wrong? When using magic in PHP, you must be aware of all of its pro’s and con’s and what is going on behind. ‘$this->bar’ is a magic variable in the example. isset or…
MongoDB client on CentOS / RedHat The Mongo client can be installed through yum, simply add the MongoDB repository as described in the official manual. I already explained this on other Linux distributions, here we go for CentOS and RedHat (maybe Slackware, too). > http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat/ PHP Mongo extension To install the Mongo extension for PHP,…
Use this PHP code function to pass an array with values and return the lowest value (min) which is greater than zero (not null, not 0, ignore zero and strings). Works with int and float values.
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/** * Returns the minimum value of an array greater than zero. * @param array $values */ function getMinVal($values) { return min(array_diff(array_map('floatval', $values), array(0))); } $prices = array( 12.5, 200, 0, 'test', null, ); echo getMinVal($prices); // Prints 12.5 |