PHP Crashs When Execution For Function Calls Opcodes

[tahaghafuri]

Description

The following code:

<?php
file_put_contents("output.txt", "This is some content to write to a file.");

Resulted in this output:
The PHP Crashs,

static ZEND_VM_HOT ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL ZEND_INIT_FCALL_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
{
    USE_OPLINE
    zval *fname;
    zval *func;
    zend_function *fbc;
    zend_execute_data *call;

    fbc = CACHED_PTR(opline->result.num);
    if (UNEXPECTED(fbc == NULL)) {
        fname = (zval*)RT_CONSTANT(opline, opline->op2);
        func = zend_hash_find_known_hash(EG(function_table), Z_STR_P(fname));
        ZEND_ASSERT(func != NULL && "Function existence must be checked at compile time");
        fbc = Z_FUNC_P(func); <<<<-- IS NULL
        if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
            init_func_run_time_cache(&fbc->op_array);
        }
        CACHE_PTR(opline->result.num, fbc);
    }

    call = _zend_vm_stack_push_call_frame_ex(
        opline->op1.num, ZEND_CALL_NESTED_FUNCTION,
        fbc, opline->extended_value, NULL);
    call->prev_execute_data = EX(call);
    EX(call) = call;

    ZEND_VM_NEXT_OPCODE();
}

Crash Point:

But I expected this output instead:

Write Sample Content To File.

Also I Think The PHP Needs Check Function Existence At Execution Time, If Not Exist Show Error.

PHP Version

PHP 8.3.12

Operating System

Windows 11

[nielsdos]

This should not be possible to hit, can you share your php.ini? Are you using features like disable_functions?

[tahaghafuri]

I don't use disable_functions.

[tahaghafuri]

php.zip
This Is My Own PHP.ini

[nielsdos]

An extension may be interfering with your code. Can you try to disable the following extensions in php.ini by commenting out their line?

• vld
• opcache
• proginow