(PHP Extension) Unicode Escape

Convert a string to Unicode escaped values.

Note: The Unicode escape functionality was added in Chilkat v9.5.0.90.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$sb = new CkStringBuilder();

$str = 'bôn';
$charset = 'not_used';

// Unicode escape all chars using \uHHHH
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-all',$charset);
print $sb->getAsString() . "\n";
// Output is \u0062\u00f4\u006e

// Unicode escape only 8bit chars using \uHHHH
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-8bit',$charset);
print $sb->getAsString() . "\n";
// Output is b\u00f4n

// To use uppercase hex chars (A-F), add "-upper" to the encoding name
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-all-upper',$charset);
print $sb->getAsString() . "\n";
// Output is \u0062\u00F4\u006E

// Unicode escape all chars using \u{HHHH}
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-all-curly-upper',$charset);
print $sb->getAsString() . "\n";
// Output is \u{0062}\u{00F4}\u{006E}

// Unicode escape 8bit chars using HTML hex &#xH;
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-8bit-html-hex',$charset);
print $sb->getAsString() . "\n";
// Output is b&#xf4;n

// Unicode escape all chars using HTML decimal &#D;
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-all-html-dec',$charset);
print $sb->getAsString() . "\n";
// Output is &#98;&#244;&#110;

// Unicode escape all chars using u+HHHH
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-all-plus',$charset);
print $sb->getAsString() . "\n";
// Output is u+0062u+00f4u+006e

// Unicode escape 8bit chars using angled brackets <HHHH>
$success = $sb->SetString($str);
$sb->Encode('unicode-escape-8bit-angle-upper',$charset);
print $sb->getAsString() . "\n";
// Output is b<00F4>n

?>