For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 77 and the first side effect is on line 1.
The PSR-1: Basic Coding Standard recommends that a file should either introduce
new symbols, that is classes, functions, constants or similar, or have side effects.
Side effects are anything that executes logic, like for example printing output,
changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state
of an application. It also promotes a cleaner style of programming and makes your code
less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the
PSR-1.
'Make sure your temporary directory exists and is writeable and your environment variables (<tt>TMP</tt>, <tt>TEMP</tt>) are set or set <tt>sys_temp_dir</tt> in your <tt>php.ini</tt>.'
125
);
126
127
assertTrue(
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is_writeable(sys_get_temp_dir()),
129
'System temporary directory (' . sys_get_temp_dir() . ') is writeable.',
130
'Make sure your temporary directory is writeable for the web server process.'
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);
132
133
// NOTE: (From PHP doc:) A boolean ini value of _off_ will be returned as an empty
134
// string or "0" while a boolean ini value of _on_ will be returned as "1".
135
// The function can also return the literal string of INI value.
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assertTrue(
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(boolval(ini_get('allow_url_fopen')) === true),
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'Using URLs in <tt>fopen()</tt> is allowed',
139
'Please set <tt>allow_url_fopen</tt> to <tt>true</tt> in your <tt>php.ini</tt>.'
140
);
141
142
assertTrue(
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is_writable(dirname(__FILE__) . '/packages/'),
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'Directory <tt>packages/</tt> writeable',
145
'Please make the <tt>packages/</tt> directory writeable for the web server process.'
jdel /
sspks
Markus Birth
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.