With this function You can compress Your PHP source code.
<?php
function compress_php_src($src) {
static $IW = array(
T_CONCAT_EQUAL, T_DOUBLE_ARROW, T_BOOLEAN_AND, T_BOOLEAN_OR, T_IS_EQUAL, T_IS_NOT_EQUAL, T_IS_SMALLER_OR_EQUAL, T_IS_GREATER_OR_EQUAL, T_INC, T_DEC, T_PLUS_EQUAL, T_MINUS_EQUAL, T_MUL_EQUAL, T_DIV_EQUAL, T_IS_IDENTICAL, T_IS_NOT_IDENTICAL, T_DOUBLE_COLON, T_PAAMAYIM_NEKUDOTAYIM, T_OBJECT_OPERATOR, T_DOLLAR_OPEN_CURLY_BRACES, T_AND_EQUAL, T_MOD_EQUAL, T_XOR_EQUAL, T_OR_EQUAL, T_SL, T_SR, T_SL_EQUAL, T_SR_EQUAL, );
if(is_file($src)) {
if(!$src = file_get_contents($src)) {
return false;
}
}
$tokens = token_get_all($src);
$new = "";
$c = sizeof($tokens);
$iw = false; $ih = false; $ls = ""; $ot = null; for($i = 0; $i < $c; $i++) {
$token = $tokens[$i];
if(is_array($token)) {
list($tn, $ts) = $token; $tname = token_name($tn);
if($tn == T_INLINE_HTML) {
$new .= $ts;
$iw = false;
} else {
if($tn == T_OPEN_TAG) {
if(strpos($ts, " ") || strpos($ts, "\n") || strpos($ts, "\t") || strpos($ts, "\r")) {
$ts = rtrim($ts);
}
$ts .= " ";
$new .= $ts;
$ot = T_OPEN_TAG;
$iw = true;
} elseif($tn == T_OPEN_TAG_WITH_ECHO) {
$new .= $ts;
$ot = T_OPEN_TAG_WITH_ECHO;
$iw = true;
} elseif($tn == T_CLOSE_TAG) {
if($ot == T_OPEN_TAG_WITH_ECHO) {
$new = rtrim($new, "; ");
} else {
$ts = " ".$ts;
}
$new .= $ts;
$ot = null;
$iw = false;
} elseif(in_array($tn, $IW)) {
$new .= $ts;
$iw = true;
} elseif($tn == T_CONSTANT_ENCAPSED_STRING
|| $tn == T_ENCAPSED_AND_WHITESPACE)
{
if($ts[0] == '"') {
$ts = addcslashes($ts, "\n\t\r");
}
$new .= $ts;
$iw = true;
} elseif($tn == T_WHITESPACE) {
$nt = @$tokens[$i+1];
if(!$iw && (!is_string($nt) || $nt == '$') && !in_array($nt[0], $IW)) {
$new .= " ";
}
$iw = false;
} elseif($tn == T_START_HEREDOC) {
$new .= "<<<S\n";
$iw = false;
$ih = true; } elseif($tn == T_END_HEREDOC) {
$new .= "S;";
$iw = true;
$ih = false; for($j = $i+1; $j < $c; $j++) {
if(is_string($tokens[$j]) && $tokens[$j] == ";") {
$i = $j;
break;
} else if($tokens[$j][0] == T_CLOSE_TAG) {
break;
}
}
} elseif($tn == T_COMMENT || $tn == T_DOC_COMMENT) {
$iw = true;
} else {
if(!$ih) {
$ts = strtolower($ts);
}
$new .= $ts;
$iw = false;
}
}
$ls = "";
} else {
if(($token != ";" && $token != ":") || $ls != $token) {
$new .= $token;
$ls = $token;
}
$iw = true;
}
}
return $new;
}
?>
For example:
<?php
$src = <<<EOT
<?php
// some comment
for ( $i = 0; $i < 99; $i ++ ) {
echo "i=${ i }\n";
/* ... */
}
/** ... */
function abc() {
return "abc";
};
abc();
?>
<h1><?= "Some text " . str_repeat("_-x-_ ", 32);;; ?></h1>
EOT;
var_dump(compress_php_src($src));
?>
And the result is:
string(125) "<?php for(=0;<99;++){echo "i=\n";}function abc(){return "abc";};abc(); ?>
<h1><?="Some text ".str_repeat("_-x-_ ",32)?></h1>"