Online PHP editor | rfc for fL9aH

@ 2018-02-15T14:36:10Z

<?php
$css=<<<CSS
    p.special {
                 font: 12pt/14pt sans-serif;
                 margin: 5px 0px 2px 25px;
                 border: medium dashed #ff0000;
                 background: white url( http://www.foo.com/image.gif ) repeat-x fixed top right; }
                 
                 /************************************************* 
Save with a name ending in .css such as styles.css *************************************************/

h1 {
	color: red; padding: 10px; text-decoration: underline;
}

.code_sample ul {
        list-style-type: upper-roman;  /* LEAVE THIS BIT OUT */
        margin-left: 50px;
}
.code_sample p {
    color: darkblue
}

a:link, a:visited, a:hover, a:active {
  background-color: green;
  color: white;
  padding: 10px 25px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}
CSS;

$patterns=[
    '~\s+~',  // reduce one or more consecutive whitespace characters ([\n\r \t]+) to a single space  ...this combines the 2nd, 3rd, and 4th pattern from catchamonkey's answer
    '~/\s*\*.*?\*/\s*|(?:(?<=[,:;{}(]) | (?=[,:;{})]))|;(?=})|^ | $~s'  // comment blocks, leading/trailing spaces after ,:;{} characters, space before ), space after (, semicolon followed by }, whitespace at start/end of file
    ];
    
$replacements=[
    ' ',
    ''
];

//  And here's a rabbit hole: https://regex101.com/r/nZbHND/1

var_export(preg_replace($patterns,$replacements,$css));

Output for git.master, git.master_jit, rfc.property-hooks: 'p.special{font:12pt/14pt sans-serif;margin:5px 0px 2px 25px;border:medium dashed #ff0000;background:white url(http://www.foo.com/image.gif) repeat-x fixed top right;}h1{color:red;padding:10px;text-decoration:underline;}.code_sample ul{list-style-type:upper-roman;margin-left:50px;}.code_sample p{color:darkblue}a:link,a:visited,a:hover,a:active{background-color:green;color:white;padding:10px 25px;text-align:center;text-decoration:none;display:inline-block;}'

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2020-03-21 RFC: Is_Literal - declined
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2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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