Php/docs/internals2.opcodes.do-fcall-by-name

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DO_FCALL_BY_NAME

PHP code

<?php/* * Call a function by name.  Following INIT_FCALL_BY_NAME and multiple SEND_VAL, SEND_VAR or SEND_REF. * opcode number: 61 */$x = 'phpinfo';$a = $x();?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$x, !1=$a

line # op fetch ext return operands
6 0 ASSIGN       !0,'phpinfo'
7 1 INIT_FCALL_BY_NAME       !0
  2 DO_FCALL_BY_NAME   0    
  3 ASSIGN       !1,$1
8 4 RETURN       1