Laravel - 带有刀片compileString的php eval

Question

I'm trying to parse a blade template string into php format and use eval() to evaluate string as php code

 $array = [
     'foo' => 'bar',
     'bar' => 'foo'
 ];
 $content = '@foreach($array as $value){{$value}}@endforeach';
 $blade = Blade::compileString($content);
 $php = eval($blade);

This is my code for testing so far and it throws exception

ParseError: syntax error, unexpected '<', expecting end of file

value of $blade after compileString()

<?php $__currentLoopData = $array; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $value): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?><?php echo e($value); ?><?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?>

What causes this error? Is eval() not compatible with the way compileString() is parsing blade into php?

Answer 1

As stated in the manual:

The code must not be wrapped in opening and closing PHP tags, i.e. 'echo "Hi!";' must be passed instead of '<?php echo "Hi!"; ?>'. It is still possible to leave and re-enter PHP mode though using the appropriate PHP tags, e.g. 'echo "In PHP mode!"; ?>In HTML mode!<?php echo "Back in PHP mode!";'.

Your blade is wrapped in <?php tags, and the compilation fails. Remove the enclosing PHP tags, but leave the interstitial tags.