$re = '/(?x)\s*(?-i:\bfunction\b)?\s*[A-Za-z_$][\w$]*\s*(?-i:\bfunction\b)?\s*\s*\([^()]*\)\s*\{/m';
$str = 'class Entity
{
constructor(game,imageURL)
{
this.game = game;
this.sprite = new Sprite(this.game.c,imageURL);
}
draw(depth,offset,textureSize,textureCoordinates,offsetX=0)
{
let scaleFactors = {
1:1,
2:0.65,
3:0.45
};
let scaleFactor = scaleFactors[depth];
let x = Math.floor(offset.x + textureCoordinates[0] + (textureSize[0] / 2) - (this.sprite.image.width * scaleFactor / 2));
let y = Math.floor(offset.y + textureCoordinates[1] + (textureSize[1] / 2) - (this.sprite.image.height * scaleFactor) + 6 * scaleFactor);
x = x + offsetX * scaleFactor;
let width = Math.floor(this.sprite.image.width * scaleFactor);
let height = Math.floor(this.sprite.image.height * scaleFactor);
let entityFades = {
1:1,
2:0.5,
3:0.1
}
let filter = \'\';
if(this.game.level.entities.fadeType === \'darken\')
{
filter += \'brightness(\'+entityFades[depth]+\')\';
}
this.sprite.draw(
x,
y,
width,
height,
0,
0,
this.sprite.image.width,
this.sprite.image.height,
filter
);
}
}';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php