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run code in 150+ php & hhvm versions
Bugs & Features
<?php $exp = '/[\s\S]*\{%[\s\S]*for[\s\S]*ad[\s\S]*in[\s\S]*ads[\s\S]*%\}/'; $string = "{% for ad in ads %} sdfksjf {% for ad in ads %} sdfksjf2 {% for ad in ads %} sdfksjf3"; /* function str_lreplace($search, $replace, $subject) { return preg_replace('~(.*)' . preg_quote($search, '~') . '~', '$1' . $replace, $subject, 1); } echo str_lreplace($exp,'',$string); */ $end_loop_regex = '/[\.\s\S]*\{%[\s\S]*endfor[\s\S]*%\}/'; $endfor_str = "{% endfor%}1 {% endfor %}2 {%endfor%}3 {% endfor%}4"; //$arr = preg_split($end_loop_regex,$endfor_str,0,PREG_SPLIT_OFFSET_CAPTURE); preg_match($end_loop_regex,$endfor_str,$arr,PREG_OFFSET_CAPTURE); //$string = $arr[0][0][0]; $start_tag = strrpos($arr[0][0],'{'); print_r($arr); echo $start_tag; //$last_end_for_pos = strrpos($return,'{% endfor %}'); //$return = substr($return,0,$last_end_for_pos);
Output for 4.3.0 - 5.0.5, 5.1.1 - 7.1.0
Array ( [0] => Array ( [0] => {% endfor%}1 {% endfor %}2 {%endfor%}3 {% endfor%} [1] => 0 ) ) 39
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/NaLoF on line 29
Process exited with code 255.