Online PHP editor | rfc for h4OYr

@ 2013-09-18T11:38:50Z

<?php

function documentNotUTF8($content)
{
    $exprs = array(
        '#<\?xml[^>]+encoding=([\'"])[Uu][Tt][Ff]-8\1#U',
        '#<meta\s+(?:(?:name\s*=\s*([\'"])http_equiv\1\s*)|(?:content\s*=\s*([\'"])text/html\s*;.*charset\s*=\s*utf-?8.*\2\s*)){2}#Ui',
    );

    foreach ($exprs as $expr) {
        if ( $match = preg_match($expr, $content) ) {
            break;
        }
    }

    return (bool) $match;
}

$content = array(
<<<HTML
<?xml version="1.0" encoding="foo"?>
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
    ,
<<<HTML
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8">
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
    ,
<<<HTML
<?xml version="1.0" encoding="foo" bar="baz"?>
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
    ,
<<<HTML
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <META CONTENT="text/html; charset=UTF-8" NAME="HTTP_EQUIV">
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
    ,
<<<HTML
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8">
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
    ,
<<<HTML
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <META NAME="HTTP_EQUIV" CONTENT="text/html; stuff=things, charset=UTF-8, otherparam=foo">
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
    ,
<<<HTML
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
  <TITLE>PHP Manual</TITLE>
  <LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML
);

foreach ($content as $str) {
    var_dump(documentNotUTF8($content));
}

Output for git.master, git.master_jit, rfc.property-hooks: Warning: Undefined variable $Revision in /in/h4OYr on line 23 Warning: Undefined variable $Revision in /in/h4OYr on line 32 Warning: Undefined variable $Revision in /in/h4OYr on line 43 Warning: Undefined variable $Revision in /in/h4OYr on line 52 Warning: Undefined variable $Revision in /in/h4OYr on line 62 Warning: Undefined variable $Revision in /in/h4OYr on line 72 Warning: Undefined variable $Revision in /in/h4OYr on line 82 Fatal error: Uncaught TypeError: preg_match(): Argument #2 ($subject) must be of type string, array given in /in/h4OYr:11 Stack trace: #0 /in/h4OYr(11): preg_match('#<\\?xml[^>]+enc...', Array) #1 /in/h4OYr(91): documentNotUTF8(Array) #2 {main} thrown in /in/h4OYr on line 11
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
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2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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